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Vz ss 5.7 ls1 in limpmode randomly, the automatic works well how to fix limp mode ?

I replaced battery connectors to brass connectors I replaced oil pressure sensor The automatic 4 speed works well whilst engine is in limpmode The limpmode comes on randomly When i replaced the battery connectors limpmode did not appear for approx 7 days then all of a sudden it reappeared which makes me believe it is not the throttle body I suspect an 02 sensor or oil pressure sensor Note scanners have not picked up any codes can you help thank you?

Posted by Anonymous on

  • 3 more comments 
  • grumpy1 woo Jan 09, 2013

    ireplaced with new fly by wire tb and electrical plug Still have limpmode

  • grumpy1 woo Jan 09, 2013

    ireplaced with new fly by wire tb and electrical plug Still have limpmode

  • grumpy1 woo Jan 09, 2013

    replaced with new fly by wire tb and electrical plug Still have limpmode

  • grumpy1 woo Jan 09, 2013

    replaced with new fly by wire tb and electrical plug Still have limpmode

  • grumpy1 woo Jan 09, 2013

    replaced with new fly by wire tb and electrical plug Still have limpmode

×

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6ya6ya
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Posted on Jan 02, 2017

  • 321 Answers

SOURCE: 99 olds alero 2.4

I'm sure you have installed a fuel pressure gauge and monitored the fuel pressure while the problem is occurring?Another diagnostic tool which is easy to do,is while the problem is occurring,unplug one sensor at a time beginning with the Mass Air Flow first,.if it uses one.Many times,not always,depending on the sensor,if the sensor is taken out of the picture as far as what the PCM is seeing,like unplugging the MAF,the PCM will substitute the missing sensor output with a generic value that will allow the engine to at least run,and if unplugging for example the MAF,the engine idle speed returns to normal,you know you're onto the problem.You didn't mention if the engine ran ok other than the idle problem.As far as checking for vacuum leaks,i use something like brake cleaner or WD 40,more of a liquid,and it does sound like a vacuum leak.Plastic intake manifolds do develop nearly invisible cracks that open up more with heat.Revsisit the possibility.And as for the PCM,it is possible,but more likely a mechanical problem.Lastly,remove an O2 sensor or two before the catalytic convertor,run the engine and see if anything changes.Cheap way to verify the catalytic convertor is flowing and not restricting engine airflow,as i have seen bad cats cause misfire codes and strange problems.Good luck.

Posted on Dec 04, 2008

  • 1 Answer

SOURCE: 2002 chrysler town and country wont leave limp mode

try getting a new shift solenoid for it. i had the same problem on my 2002 chrysler town and country and my plymouth breeze which is also a dodge product. it is very simple to do and doesnt take all that long. the part will probably run you about 150 to 200 dollars but it should fix your problem.

Posted on Apr 04, 2009

  • 3 Answers

SOURCE: 2004 Honda Civic -Code P0122 Throttle Position Sensor Voltage Low

yes, this is the case of a failed throttle body, in which case it needs replaced, the car is getting too much fuel causing the high idle. this needs replaced asap. you could proably find a small independant honda shop that could do the work for less.

Posted on May 12, 2009

  • 14 Answers

SOURCE: high idle CHevy 350 TBI

check if went from a V6 TO V8 need power two more cylinders

Posted on Jun 21, 2009

  • 184 Answers

SOURCE: 2003 Hyundai Elantra GLS. Check engine light, code PO133

Did you use a aftermarket O2 sensor or a genuine Hyundai one? If it's an aftermarket one it may be bad or not as good as the OEM one. See here for more details and other potential causes: P0133

Posted on Feb 11, 2010

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1 Answer

Faulty oil pressure sensor [ ls1 ] australia


Hi Grumpy, If there is one single cable connected to the Oil Pressure Sensor it is usually a direct connection to the instrument panel light. Basically it's a make and break pressure switch. If there more than one cable it will probably be controlled via the computer and therefore you'll need to replace it. Let me know more details? Regards John

Mar 24, 2013 | Cars & Trucks

Tip

Mack Fault Codes List


FAULT CODE IDENTIFICATION TABLE - VMACIII - 1998 & NEWER
1-1 Engine Oil Pressure Sensor
1-2 Barometric Pressure Sensor
1-3 Fuel Temperature Sensor
1-4 Ambient Air Temp Sensor
1-6 Starter Input
1-7 Engine Coolant Level
1-8 (ASET CEGR) Estimated % Fan Speed
1-10 Aux. Cooling Relay Output
2-1 Engine Coolant Temp Sensor
2-2 (ASET IEGR) Boost Air Pressure Sensor
2-2 (ASET CEGR) Boost Air Pressure
2-3 Intake Air Temp Sensor
2-4 Trans Oil Temp Sensor
2-5 Front Drive Axle Oil Temp Sensor
2-6 Rear Drive Axle Oil Temp Sensor
2-7 Engine Oil Temp Sensor
2-8 (ASET CEGR) Combustion Air Temperature
2-9 (ASET CEGR) Combustion Air Temp Sensor
3-1 Exhaust Temperature Sensor
3-2 Engine Speed Sensor
3-3 Redundant Engine Speed
3-4 Engine Position Sensor
3-5 Engine Brake Output #1
3-6 Engine Brake Output #2
3-8 Trans Splitter Position
3-10 (ASET CEGR) Engine Brake Output #3
4-1 Vehicle Speed Sensor (VSS)
4-2 Fan Clutch Output
4-3 Auxiliary Output #1
4-4 Auxiliary Output #2
4-5 (ASET IEGR) Wastegate Output
4-5 (ASET CEGR) VTG Position Sensor
4-6 Tachometer Output
4-7 Speedometer Output
4-8 Customer Defined Statement
4-9 (ASET CEGR) EGR Valve Mechanism
5-1 Throttle Position Sensor
5-2 Throttle Position Sensor Reference Voltage
5-3 Engine Shutdown Lamp/Alarm
5-5 Electronic Malfunction Lamp
5-6 Spare Relay #3
5-7 Engine Oil Level
5-8 (ASET CEGR) EGR Temperature
5-9 (ASET CEGR) EGR Mass Flow
6-1 Fuel Level
6-2 (ASET CEGR) Turbocharger Speed
6-3 J1708/J1587 Link
6-4 J1939 Link
6-5 All Communication Lost - Engine Shutdown
6-6 Fuel Control Module
6-7 Power Relay
6-8 J1939 Link
6-9 Other ECU Affecting Operation
7-1 Service Brake Switch
7-2 Parking Brake Switch
7-3 Speed Control SET Switch
7-4 Speed Control RESUME Switch
7-5 Battery / Alternator Voltage
7-6 Switched Voltage
7-7 Exhaust Temp Reference
7-9 VTG Actuator
8-1 Electronic Unit Pump #1
8-2 Electronic Unit Pump #2
8-3 Electronic Unit Pump #3
8-4 Electronic Unit Pump #4
8-5 Electronic Unit Pump #5
8-6 Electronic Unit Pump #6
8-9 Solenoid Boost Voltage
9-1 Transport Protocol
9-2 Power Reset Without Key Switch
9-3 (ASET CEGR) Aftercooler Outlet Temperature
9-5 (ASET CEGR) Compressor Discharge Temp
9-8 (ASET CEGR) Auxiliary Output Device #1
9-9 (ASET CEGR) Auxiliary Output Device #2
9-10 (ASET CEGR) Auxiliary Output Device #3
10-1 (ASET CEGR) Internal Sensor Voltage
10-2 (ASET CEGR) 5 Bolt Supply
10-3 (ASET CEGR) Sensor Supply Voltage #1
10-4 (ASET CEGR) Sensor Supply Voltage #2
10-5 (ASET CEGR) Fuel Filter Differential Pressure
10-6 (ASET CEGR) Fuel Delivery Pressure
10-7 (ASET CEGR) Odometer Save Area Failure
10-8 (ASET CEGR) GPS Position Data Not Received
10-9 (ASET CEGR) Watchdog Timer Reset


source

on Dec 20, 2016 | Cars & Trucks

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Caterpillar Fault Codes


CID code Name
1 Injector? 1
2 Injector, cylinder number 2
3 Injector number 3
4 Injector number 4
5 Injector, cylinder number 5
6 Injector, cylinder number 6
7 Injector number 7
8 Injector number 8
9 Injector number 9
10 Injector number 10
11 Injector number 11
12 Injector number 12
13 Injector number 13
14 Injector number 14
15 Injector number 15
16 Injector number 16
17 The fuel shut-off valve
18 The fuel control valve
19 Bypass valve accelerator
20 Device change timing of fuel injection
21 Position Sensor Engine
22 Sensor fuel injection advance
23 Drive Racks
24 position sensor rail
27 is a variable geometry turbocharger number 1
28 Drive with variable geometry turbocharger number 2
41 Power ECU (electronic control unit) 8 V DC
42 Valve inclusion nozzles
70 contact with the parking sensor
71 Timer stop idling
75 Oil temperature sensor circuit hydraulic steering system
The pressure sensor 81 at the inlet trap foreign particles
82 Pressure Sensor pnevmozapuska
84 speed sensor
91 Accelerator pedal position sensor
94 Pressure Sensor fuel pumping
95 The differential pressure sensor on the fuel filter
96 Fuel level sensor
98 Oil level sensor in the engine
99 The differential pressure sensor on the engine oil filter
100 Oil Pressure Switch Engine
101 pressure sensor crankcase gases
102 turbo pressure sensor
104 Oil pressure turbocharger
105 temperature sensor intake manifold
106 sensor input air pressure
Pressure sensor 109 of coolant downstream of the engine
110 Coolant Temperature Sensor Engine
111 level sensor, engine coolant
The differential pressure sensor 112 to filter engine coolant
124 gearbox oil level
126 differential pressure sensor on the oil filter transmission
127 Oil Pressure Switch gearbox
138 Mode Switch low traction
139 Solenoid tip ago
140 Solenoid tip forward
141 Eco Mode Switch
142 position sensor door to clean the radiator
143 contact pressure sensor control unit neutral
144 horn relay reverse
145 power supply circuit 12
146 Mode Switch hitch
147 pressure sensor lock-up clutch
148 pressure sensor in the hydraulic stroke
149 Three-way solenoid stabilization system of the implement when driving
150 Speed Sensor trambovatelya
151 Solenoid trambovatelya
152 diagnostic lamp control systems course
153 speed sensor right drive motor
154 RPM Sensor left actuator motor
155 solenoid switching stroke
156 Solenoid right turn in reverse (electronic display)
157 Solenoid left turn in reverse (electronic display)
158 Solenoid right turn forward direction (electronic display)
159 Solenoid left turn forward direction (electronic display)
160 Relay working equipment paver
161 brake sensor (chassis) pedal
162 Sensor Steering Wheel
The steering angle sensor 163 rotation
164 Pressure Sensor inclusion nozzles
167 Sensor charging voltage of the alternator
168 Electric system
171 of the ambient air temperature sensor
172 temperature sensor in the intake manifold
174 Fuel temperature sensor
175 Temperature Sensor Engine oil
177 oil temperature sensor Gearbox
190 RPM Sensor engine crankshaft
191 sensor output speed gearbox
248 data channel of Caterpillar
249 data channel J1922 SAE (Society of Automotive Engineers)
250 data channel J1708 / J1587 SAE (Society of Automotive Engineers)
Block 252 calibration
253 Personal chip control unit
254 electronic control unit
256 Map adjusting engine performance
257 Level detonation
258 sensor crank angle
259 set via software point fuel injection
260 oxygen sensor in the exhaust gas
261 the fuel injection timing calibration
262 circuit sensor supply 5 V
The power circuit 263 digital sensors (8 or 12)
264 pedal revolutions reduction
265 Input circuit stopping the engine, user-defined
266 Input circuit dry scroll engine (without fuel injection)
267 Chain input remote control signal Safe Stop engine
268 Error programmed parameter
269 circuit sensor supply
Code 270 cable computerized monitoring system (CMS)
271 Sound the alarm
272 sensor has exceeded the allowable turbo
273 pressure sensor at the outlet of the turbocharger
274 atmospheric pressure sensor
275 pressure sensor at the entrance of the right turbocharger
Pressure transducer 276 at the input of the left turbocharger
277 sensor calibration injection timing
278 The indicator light turn on the automatic control of engine speed (AESC)
279 coolant temperature in the intercooler front section
280 temperature sensor gear
281 The indicator light necessary Engine
282 Light indicator exceeding the permissible engine speed
283 Indicator Light air filter
284 Radio on EMS (electronic control system) (the signal of the engine)
285 overheating indicator light, engine coolant
286 Indicator light low oil pressure
287 Miniature digital output? 7
288 Miniature digital output? 8
289 Fuel pressure - before the fuel filter
290 pressure sensor in the pump drive engine cooling fan
The solenoid 291 engine cooling fan
292 solenoid hydraulic oil cooling fan
293 power analog output? 3
294 power analog output? 4
The control unit 295 hydraulic excavator heavy-duty
296 gearbox control unit
297 all-wheel drive system control
298 The probe brake pedal
299 position sensor gear lever
300 The primary windings of ignition coils
301 The primary winding of the ignition coil? 1
302 The primary winding of the ignition coil? 2
303 The primary winding of the ignition coil? 3
304 The primary winding of the ignition coil? 4
305 The primary winding of the ignition coil? 5
306 The primary winding of the ignition coil? 6
307 The primary winding of the ignition coil? 7
308 The primary winding of the ignition coil? 8
309 The primary winding of the ignition coil? 9
310 The primary winding of the ignition coil? 10
311 The primary winding of the ignition coil? 11
312 The primary winding of the ignition coil? 12
313 The primary winding of the ignition coil? 13
314 The primary winding of the ignition coil? 14
315 The primary winding of the ignition coil? 15
316 The primary winding of the ignition coil? 16
317 load cell
318 Right knock sensor
319 Left knock sensor
320 RPM Sensor / injection timing
321 Key switch reset / diagnostic confirmation
322 engine stop switch
323 The indicator light engine stop
324 Alarm lamp
325 detonation caused by the ignition system
Detonation System 326
327 Wrong number of knock sensors
328 Wrong number of cylinders of the engine
329 Error Link
330 Login with contact sensor propane content
331 Ignition Switch
332 keyboard switch
333 switch alarm
334 Reserve output
335 solenoid screw scraper
336 switch engine control
337 Remote Switch emergency stop
338 Relay pre-lube pump motor
339 contact pressure transducer pre-lube the engine
340 solenoid shut-off air
The solenoid 341? 4 warm-hydraulic distributor
342 Auxiliary speed sensor engine crankshaft
343 injector NOx catalyst in the exhaust gas
344 Relay injection pump converter of nitrogen oxides in exhaust gases
Pressure sensor 345 of the injection NOx catalyst in the exhaust gas
346 Relay stabilization system of the implement when driving
347 solenoid feed control (working volume) motor hydrostatic transmission
348 lock switch gearbox
Solenoid 349 gearbox synchronization
350 position sensor rod lift
351 position sensor rod misalignment
352 Sensor lift lever (in the cockpit)
353 sensor lever skew (in the cockpit)
The solenoid 354? 1 lift
The solenoid 355? 1 lowering
The solenoid 356? 1 unloading
357 Solenoid No. 1 return
358 Drive pressurization of the control loop hydraulic system work equipment
359 solenoid locking lifting
360 solenoid lock lowering
The electromagnet 361 tilt lock to download
362 solenoid control the fan speed of the engine
363 Drive stabilization system of the implement when driving
364 pressure sensor piston cavity lift cylinder
365 switch for limiter
366 contact gauge semiautomatic recess
367 Switch stabilization system of the implement when driving
368 switch, automatic / manual mode transmission
369 Login with shift indicator on the gearbox
370 Solenoid floating position arrows
Solenoid 371 beep
372 solenoid opening bucket (for excavator shovel)
373 solenoid closing bucket trucks through the hinged bottom (for excavator shovel)
374 Solenoid swing brake
375 Solenoid swing brake
376 Warning stroke
377-way solenoid brake
378 solenoid automatic lubrication system of the machine
379 Pressure Sensor automatic machine lubrication
380 contact pressure transducer modulation shift gearbox
381 Contact neutral position sensor lift lever (in the cockpit)
382 lever position sensor coupling
383 position sensor coupling
384 shifter
385 contact sensor neutral position tilt (in the cockpit)
386 solenoid lifting hitch
387 Solenoid lowering hitch
388 Contact line solenoid coupling
389 The probe neutral auxiliary lever
The solenoid 390 controlling the flow of hydraulic oil through the forward clutch
The solenoid 391 controlling the flow of hydraulic oil through the reversing
392 solenoid oil supply
The solenoid 393 to drive the front wheels
The solenoid 394 controlling the flow of oil through the drive motor
395 solenoid switch actuator pressure of the front wheel
396 Light on lamp-wheel drive (AWD)
397 contact pressure transducer feed pump
398 pressure sensor in the front wheel drive
399 sensor to the control lever-wheel drive (AWD)
400 The secondary windings of ignition coils

More Fault Codes HERE Caterpillar DTC

on Dec 20, 2016 | Cars & Trucks

1 Answer

NEW CODE ON 2005 CHYSLER 300 0520 CAN NOT FIND WHY THIS CODE KEEPS COMING ON


Hi there:
DTC P0520 Engine Oil Pressure Sensor/Switch Circuit Malfunction

If you decide to replace it and the code returns once cleared.....then you will need to run the entire test for this code:
3_13_2012_4_18_24_pm.gif
Zoom link HERE
For a complete wiring diagram Refer to Section 8W.When Monitored:Ignition on, engine not running.Set Condition:The PCM senses the oil pressure is out of the calibrated range.Possible Causes(G6) ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGERESISTANCE (G6) ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT(G6) ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUNDRESISTANCE IN (F856) 5-VOLT SUPPLY CIRCUIT(F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUNDRESISTANCE IN THE (K900) SENSOR GROUND CIRCUITENGINE OIL PRESSURE SENSORPCMAlways perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Diagnostic Test1. ACTIVE DTC NOTE: Ensure that the engine oil is at the proper level. Also, check the customers oil change history to ensure that the oil is being changed at the correct intervals and that the proper oil viscosity is being used.
Ignition on, engine not running.With a scan tool, read DTCs.Is the DTC active at this time?YesGo To 2
NoRefer to the INTERMITTENT CONDITION Diagnostic Procedure.


2. (G6) ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
3_13_2012_4_19_33_pm.gif
Turn the ignition off.Disconnect the PCM harness connectors.Disconnect the Engine Oil Pressure Sensor harness connector. Ignition on, engine not running.Measure the voltage on the (G6) Engine Oil Pressure Signal circuit in the Engine Oil Pressure Sensor harness connector.Is the voltage above 0 volts?YesRepair the short to battery voltage in the (G6) Engine Oil Pressure Signal circuit.
NoGo To 3

3. ENGINE OIL PRESSURE SENSOR
3_13_2012_4_20_03_pm.gif
Turn the ignition off.Connect the PCM harness connectors.Ignition on, engine not running.With a scan tool, monitor the Engine Oil Pressure Sensor voltage. Connect a jumper wire between the (K900) Sensor Ground circuit and the (G6) Engine Oil Pressure Signal circuit.NOTE: Engine Oil Pressure voltage should change from approximately 4.5 volts to less than 0.5 of a volt.Is the voltage reading within the listed specification when the jumper wire is installed?YesReplace the Engine Oil Pressure Sensor.
NoGo To 4NOTE: Remove the jumper wire before continuing.

4. EXCESSIVE RESISTANCE IN THE (G6) ENGINE OIL PRESSURE SIGNAL CIRCUIT
3_13_2012_4_20_33_pm.gif
Turn the ignition off.Disconnect the PCM harness connectors.CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 to perform diagnosis.
Measure the resistance of the (G6) Engine Oil Pressure Signal circuit from the Engine Oil Pressure Sensor harness connector to the appropriate terminal of special tool #8815.Is the resistance below 5.0 ohms for each circuit?YesGo To 5
NoRepair the excessive resistance in the (G6) Engine Oil Pressure Signal circuit.


5. (G6) ENGINE OIL PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND
3_13_2012_4_20_55_pm.gif

Measure the resistance between ground and the (G6) Engine Oil Pressure Signal circuit Engine Oil Pressure Sensor harness connector.Is the resistance below 100 ohms?YesRepair the short to ground in the (G6) Engine Oil Pressure Signal circuit.
NoGo To 6

6. EXCESSIVE RESISTANCE IN THE (F856) 5-VOLT SUPPLY CIRCUIT
3_13_2012_4_21_24_pm.gif
Measure the resistance of the (F856) 5-volt Supply circuit from the Engine Oil Pressure Sensor harness connector to the appropriate terminal of special tool #8815.Is the resistance below 5.0 ohms?YesGo To 7
NoRepair the excessive resistance in the (F856) 5-volt Supply circuit.

7. (F856) 5-VOLT SUPPLY SHORTED TO GROUND
3_13_2012_4_21_54_pm.gif
Measure the resistance between ground and the (F856) 5-volt Supply circuit in the Engine Oil Pressure Sensor harness connector.Is the resistance below 100 ohms?YesRepair the short to ground in the (F856) 5-volt Supply circuit.Perform the POWERTRAIN VERIFICATION TEST.
NoGo To 8

8. EXCESSIVE RESISTANCE IN THE (K900) SENSOR GROUND CIRCUIT
3_13_2012_4_22_21_pm.gif
Measure the resistance of the (K900) Sensor Ground circuit from the Engine Oil Pressure Sensor harness connector to the appropriate terminal of special tool #8815.Is the resistance below 5.0 ohms?YesGo To 9
NoRepair the excessive resistance in the (K900) Sensor Ground circuit.Perform the POWERTRAIN VERIFICATION TEST.

9. PCMNOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and Ground circuits.Were there any problems found?YesRepair as necessary.Perform the POWERTRAIN VERIFICATION TEST.
NoReplace and program the Powertrain Control Module per Service Information.Perform the POWERTRAIN VERIFICATION TEST.

Hope this helps.

Mar 09, 2012 | 2005 Chrysler 300

3 Answers

Where is the oil pressure switch located on the engine of a 2007 EOS turbo 2 liter?


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Regards, Lee Davidian

Jan 10, 2011 | 2008 Volkswagen Eos

Tip

How to Replace the Oil Pressure Sensor on a Ford F-150?


If there is oil in the car but if not getting detected or if there is a oil leak then its time to replace oil pressure sensor.
1) The oil pressure sensor is located under the hood on the driver side of the engine.
2) You will see oil pressure sensor next to the oil filter.
3) The oil pressure sensor is connected by a connector cable. Remove the connector cable and remove the sensor from the harness with your hands carefully.
4) The sensor is screwed in the engine blocks. Rotate the sensor screw anti clock wise to take it out.
5) Now before removing the old oil pressure sensor, please take note of the position in which it is placed. So while inserting new sensor there is no problem about placing the new sensor.
6) Insert the new sensor carefully and connect the connector cable to the proper position.
7) And reverse/refit all the wires / parts which you removed while replacing the old Oil pressure sensor.

This will help. Thanks

on Mar 22, 2010 | Ford F-150 Cars & Trucks

1 Answer

How difficult is it to replace an engine in a 200 kia sephia


1998-01 Models
NOTE: The procedure for removing the engine requires removing
the transaxle along with the engine as an assembly. As a result, when the
halfshafts are pulled from the transaxle, a special plug/side gear holding tool
is recommended.



  1. Before servicing the vehicle, refer to the precautions in the beginning of
    this Section.
  2. Properly relieve the fuel system pressure.
  3. Remove or disconnect the following:

    • Battery cables
    • Battery and tray

  4. Drain and recycle the engine coolant.
  5. Remove or disconnect the following:

    • Data Link (DLC) from the Mass Air Flow (MAF) sensor bracket
    • Intake Air Temperature (IAT) and Mass Air Flow (MAF) sensor connectors
    • Air intake hose from the throttle body
    • Ventilation hose and fresh air duct
    • Accelerator and, if equipped, cruise control cables
    • Air cleaner assembly
    • Brake booster and purge control vacuum hoses from the intake manifold
    • Upper and lower radiator hoses
    • Fuel hose from the fuel injector rail
    • Heater hoses
    • Idle Air Control (IAC) and Throttle Position (TP) sensor connectors
    • Fuel injector electrical connectors
    • Starter and generator electrical connectors
    • Engine ground strap
    • Left and right splash shields
    • Exhaust manifold heat shield and 3 power steering pump bracket bolts
    • Air conditioning compressor mounting bolts and position it aside leaving the
      hoses attached
    • Ground strap from the top of the transaxle
    • No. 4 engine mount
    • Input/turbine speed sensor connector, if equipped with an automatic
      transaxle
    • Back-up light switch, if equipped with a manual transaxle
    • Vehicle Speed Sensor (VSS)
    • U-clip from the selector cable and the nut and washer from the transaxle
      linkage, if equipped with an automatic transaxle
    • Linkage and extension bar, then the clutch release cylinder and hydraulic
      hose, if equipped with a manual transaxle
    • Transaxle range switch and solenoid valve connectors, then the 2 transaxle
      oil cooler hoses, if equipped with an automatic transaxle
    • Front wheels
    • Oxygen (O2) sensor electrical connectors
    • Front exhaust pipe
    • Halfshafts

  6. Properly support the engine/transaxle assembly.
  7. Remove or disconnect the following:

    • 2 No. 2 engine mount-to-mounting member mounting bolts
    • 1 bolt from the No. 3 engine mount
    • 3 No. 1 engine mounting bolts, then carefully lift the engine/transaxle
      assembly from the vehicle

    To install:

  8. Installation is the reverse of the removal procedure. Note the following
    important steps.
  9. When possible, leave the engine mounting nuts/bolts loose (hand tight) until
    all mounts are aligned and bolted. This may help in aligning the
    engine/transaxle assembly in the vehicle.
  10. Tighten the engine mount bolts/nuts as follows:

    • No. 1 mounting bolts: 50-70 ft. lbs. (67-93 Nm)
    • No. 3 mounting bolts: 63-86 ft. lbs. (85-116 Nm)
    • No. 2 mounting nuts: 28-38 ft. lbs. (38-51 Nm)
    • No. 4 mounting bolts: 47-66 ft. lbs. (64-89 Nm)
    • No. 4 mounting nuts: 49-68 ft. lbs. (68-93 Nm)

  11. Install new circlips on the inner CV-joint stub shafts, if equipped,
    intermediate shaft. Grease the shaft splines before installing the
    halfshaft/intermediate shaft into the transaxle.
  12. Always install new gaskets and/or O-rings. Use new self-locking nuts,
    especially on the exhaust.
  13. Fill the engine and the transaxle with the proper types and quantities of
    oil. Fill the cooling system.
  14. Connect the negative battery cable, start the engine and check for leaks.
    Check all fluid levels.


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Oct 30, 2010 | 2000 Kia Sephia

1 Answer

I'm looking for the oil presher switch on a 2000 Grand Am GT


Look on the engine block for a sensor with wires on it: Sending Units & Switches Oil Pressure Sensor/Switch Removal & Installation To Remove:
  1. Remove the battery negative cable from the battery.
  2. Raise and safely support the vehicle.
  3. Disconnect the electrical connector from the engine oil pressure sensor.
  4. Remove the engine oil pressure sensor.
To Install:
  1. Install or connect the following:
    • Engine oil pressure switch. Tighten the switch to 12 ft lbs (16 Nm) on the 3.4L engine, 16 ft lbs (22 Nm) on the 2.2L engine and 106 in lb (12Nm) on the 2.4L engine.
    • Electrical connector to the engine oil pressure sensor.
  2. Lower the vehicle.
  3. Install the battery negative cable to the battery.

Aug 19, 2010 | 2000 Pontiac Grand Am GT

1 Answer

Oil pressure light stays on .engine is running good .why is the light on?


Check the oil pressure sensor and the wiring to it.

Oil Pressure Sensor Removal & Installation 3.4L & 3.5L Engine To Remove:
  1. Disconnect the battery ground cable.
  2. Raise and safely support the vehicle.
  3. Disconnect the electrical connector from the oil pressure sensor. chev_vent_op-sen.gif

  4. Remove the oil pressure sensor from the engine.
To Install:
  1. Install the oil pressure sensor on the engine. Tighten 12 ft-lb (16 Nm).
  2. Connect the oil pressure sensor electrical connector.
  3. Lower the vehicle.
  4. Connect the battery ground cable.
  5. Start the engine and check for leaks.
3.6L Engine To Remove:
  1. Disconnect the oil pressure sensor electrical connector. Oil pressure sensor 3.6L gm-04-36-2519.gif

  2. Remove the oil pressure sensor.
To Install:
  1. Install the oil pressure sensor. Tighten 15 ft-lb (20 Nm).
  2. Connect the oil pressure sensor electrical connector.
  3. Check for leaks.
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Aug 07, 2010 | 2003 Buick Rendezvous

1 Answer

Xterra repair


Since this is an intermittent problem, first try to determine if the problem arises due to one of these many intermittent problems:

* Vehicle vibration
* Heat sensitive
* Freezing
* Water intrusion
* Electrical load
* Cold or hot start up

If you can't isolate the cause of the intermittent problem, you can try adjusting the Idle Speed/Ignition Timing/Idle Mixture Ratio:

Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment

PREPARATION
1) Make sure that the following parts are in good order.

* Battery
* Ignition system
* Engine oil and coolant levels
* Fuses
* ECM harness connector
* Vacuum hoses
* Air intake system
* (Oil filler cap, oil level gauge, etc.)
* Fuel pressure
* Engine compression
* EGR valve operation (If so equipped)
* Throttle valve
* Evaporative emission system

2) On air conditioner equipped models, checks should be carried out while the air conditioner is OFF.
3) On automatic transmission equipped models, when checking idle rpm, ignition timing and mixture ratio,
checks should be carried out while shift lever is in “N” position.
4) When measuring “CO” percentage, insert probe more than 40 cm (15.7 in) into tail pipe.
5) Turn off headlamps, heater blower, rear defogger.
6) Keep front wheels pointed straight ahead.
7) Make the check after the cooling fan has stopped.

INSPECTION PROCEDURE

1 INSPECTION START
1. Visually check the following:
I Air cleaner clogging
I Hoses and ducts for leaks
I EGR valve operation (If so equipped)
I Electrical connectors
I Gasket
I Throttle valve and throttle position sensor operation
2. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
Ensure engine stays below 1,000 rpm.
3. Open engine hood and run engine at about 2,000 rpm for about 2 minutes under no-load.
4. Perform diagnostic test mode II (Self-diagnostic results).
OK or NG
OK ' GO TO 2.
NG ' 1. Repair or replace components as necessary.
2. GO TO 2.

2 CHECK IGNITION TIMING
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
3. Turn off engine and disconnect throttle position sensor harness connector.
4. Start and rev engine (2,000 - 3,000 rpm) two or three times under no-load, then run at idle speed.
5. Check ignition timing with a timing light.
15°±2° BTDC (in “P” or “N” position)
OK or NG
OK ' GO TO 4.
NG ' GO TO 3.

3 ADJUST IGNITION TIMING
1. Adjust ignition timing by turning distributor after loosening securing bolts.
2. Turn off engine and connect throttle position sensor harness connector to throttle position sensor.
' GO TO 2.


4 CHECK BASE IDLE SPEED
1. Check idle speed.
700±50 rpm (in “P” or “N” position)
OK or NG
OK ' GO TO 6.
NG ' GO TO 5.

5 ADJUST BASE IDLE SPEED
1. Rev engine (2,000 to 3,000 rpm) 2 or 3 times under no-load then run engine at idle speed.
2. Adjust idle speed by turning idle speed adjusting screw.
700±50 rpm (in “P” or “N” position)
' GO TO 6.

6 CHECK TARGET IDLE SPEED
1. Turn off engine and connect throttle position sensor harness connector.
2. Start and rev engine (2,000 to 3,000 rpm) 2 or 3 times under no-load then run at idle speed.
3. Check idle speed.
750±50 rpm (in “P” or “N” position)
OK or NG
OK ' GO TO 9.
NG ' GO TO 7.

7 DETECT MALFUNCTIONING PART
Check the following.
1. Check IACV-AAC valve and replace if necessary.
2. Check IACV-AAC valve harness and repair if necessary.
3. Check ECM function by substituting another known good ECM.
(ECM may be the cause of a problem, but this is rarely the case.)
' GO TO 9.

9 CHECK FRONT HEATED OXYGEN SENSOR LH SIGNAL
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. Set “Left bank front heated oxygen sensor monitor” in the Diagnostic Test Mode II.
3. Make sure that MIL goes on more than 5 times during 10 seconds at 2,000 rpm.
OK or NG
OK ' GO TO 12.
NG (MIL does not blink.) ' GO TO 17.
NG (MIL blinks less than 5 times.)
' 1. Replace front heated oxygen sensor LH.
2. GO TO 10.


10 CHECK FRONT HEATED OXYGEN SENSOR LH SIGNAL
1. Warm engine to normal operating temperature.
2. Run engine at approx. 2000 rpm for approx. 2 minutes under no-load.
3. Set “Left bank front heated oxygen sensor monitor” in the Diagnostic Test Mode II.
4. Make sure that MIL goes on more than 5 times during 10 seconds at 2,000 rpm.
OK or NG
OK ' GO TO 13.
NG ' GO TO 11.

11 DETECT MALFUNCTIONING PART
Check the following.
1. Check fuel pressure regulator.
2. Check mass air flow sensor and its circuit.
3. Check injector and its circuit.
Clean or replace if necessary.
4. Check engine coolant temperature sensor and its circuit.
5. Check ECM function by substituting another known good ECM.
(ECM may be the cause of a problem, but this is rarely the case.)
' GO TO 2.


13 CHECK FRONT HEATED OXYGEN SENSOR RH SIGNAL
1. Set “Right bank front heated oxygen sensor monitor” in the Diagnostic Test Mode II.
2. Make sure that MIL goes on more than 5 times during 10 seconds at 2,000 rpm.
OK or NG
OK ' INSPECTION END
NG (MIL does not blink.) ' GO TO 16.
NG (MIL blinks less than 5 times.)
' 1. Replace front heated oxygen sensor RH.
2. GO TO 14.


14 CHECK FRONT HEATED OXYGEN SENSOR RH SIGNAL
1. Warm engine to normal operating temperature.
2. Run engine at approx. 2000 rpm for approx. 2 minutes under no-load.
3. Set “Right bank front heated oxygen sensor monitor” in the Diagnostic Test Mode II.
4. Make sure that MIL goes on more than 5 times during 10 seconds at 2,000 rpm.
OK or NG
OK ' INSPECTION END
NG ' GO TO 15.

15 DETECT MALFUNCTIONING PART
Check the following.
1. Check fuel pressure regulator.
2. Check mass air flow sensor and its circuit.
3. Check injector and its circuit. Clean or replace if necessary.
4. Check engine coolant temperature sensor and its circuit.
5. Check ECM function by substituting another known good ECM.
(ECM may be the cause of a problem, but this is rarely the case.)
' GO TO 2.
16 CHECK FRONT HEATED OXYGEN SENSOR RH HARNESS
1. Turn off engine and disconnect battery ground cable.
2. Disconnect ECM harness connector.
3. Disconnect front heated oxygen sensor RH harness connector.
4. Check harness continuity between ECM terminal 50 and front heated oxygen sensor RH harness connector.
Continuity should exist.
OK or NG
OK ' 1. Connect ECM harness connector.
2. GO TO 18.
NG ' 1. Repair or replace harness.
2. GO TO 9.

17 CHECK FRONT HEATED OXYGEN SENSOR LH HARNESS
1. Turn off engine and disconnect battery ground cable.
2. Disconnect ECM harness connector.
3. Disconnect front heated oxygen sensor LH harness connector.
4. Check harness continuity between ECM terminal 51 and front heated oxygen sensor LH harness connector.
Continuity should exist.
OK or NG
OK ' 1. Connect ECM harness connector.
2. GO TO 18.
NG ' 1. Repair or replace harness.
2. GO TO 9.

18 PREPARATION FOR “CO” % CHECK
1. Disconnect engine coolant temperature sensor harness connector.
2. Connect a resistor (4.4 kW) between terminals of engine coolant temperature sensor harness connector.
' GO TO 19.

19 CHECK “CO” %
1. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
2. Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed.
3. Check “CO” %.
Idle CO: 1.5 - 9%
After checking CO%,
a. Disconnect the resistor from terminals of engine coolant temperature sensor.
b. Connect engine coolant temperature sensor harness connector to engine coolant temperature sensor.
OK or NG
OK ' 1. Replace front heated oxygen sensor LH.
2. GO TO 10.
NG ' GO TO 20.

20 DETECT MALFUNCTIONING PART
Check the following.
1. Connect front heated oxygen sensor harness connectors to front heated oxygen sensors.
2. Check fuel pressure regulator.
3. Check mass air flow sensor and its circuit.
4. Check injector and its circuit.
Clean or replace if necessary.
5. Check engine coolant temperature sensor and its circuit.
6. Check ECM function by substituting another known good ECM.
(ECM may be the cause of a problem, but this is rarely the case.)
' GO TO 2.

Aug 17, 2008 | 2000 Nissan Xterra

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