Question about Cars & Trucks

Open Question

Truck runs but dies when i hook up vacuum line to map sensor could it be the EGR solenoid please help thanks

Posted by on

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
FoRdMaStEr
  • 51 Answers

SOURCE: no vacuum to egr valve

there is an EGR vacuum solenoid somwhere that controls on/off vacuum to actuate the valve. i am not to sure of the location, but follow the vacuum line back from the egr until you find a device that looks like an electrical check valve for vacuum. that is a possibilty. but then again i am a ford,chrysler guy and am just giving you an answer based on my understanding of the functuality of a vacuum egr system

Posted on Jan 15, 2009

Ad
  • 1 Answer

SOURCE: EGR Solenoid creates no vacuum

The EGR solenoid is located towards the rear of the car from the EGR vavle and slightly towards the center. It kind of stands on end. There is a vacuum line coming out the top (port C) and a green 2 wire connector plugged into it. Hope this helps.

Posted on Aug 17, 2009

Testimonial: "JLCoffell1 Thank you for finally replying to me, I've already found and fixed my problem, No thanks to this damn website and arrogant pricks like EWiz"

taran_2005
  • 10515 Answers

SOURCE: 2001 montero sport looking for

Hi,

The P0403 code represents a problem with the Exhaust Gas Recirculation Solenoid or circuit.Below is the chart that explains and directs us to where the problem may exist.

c2db8c2.gif



Since there are a number of components or wires that can be at fault for this code,I feel it is not going to be something that we should attempt to diagnose via long distance. You may wish to check the basic wiring and vacuum supply to the solenoid, but if you find that the ECM is at fault, you will want to have this type of problem backed up by a good part and labor warranty.
Most solenoids need about 20 ohms or slightly higher resistance on the primary winding circuits to function correctly.

b1a5573.gif
ea18797.gif

  1. Using the VACUUM HOSE ROUTING as a guide, check to be sure that the vacuum hoses are correctly connected.
  2. Check the connection condition of the vacuum hoses, (removed, loose, etc.) and check to be sure that there are no bends or damage.
Be sure to clear any trouble codes after you have made any repairs to the system.
Below is a technical service bulletin I have located on your vehicle, It may or may not be related to your current problem. I simply wanted you to have it.
TSB Revision: TSB-06-13-012
DATE: September, 2006
MODEL: See below

SUBJECT:
EGR SYSTEM TROUBLESHOOTING
- SERVICE MANUAL REVISION

PURPOSE
This bulletin contains additional troubleshooting procedures for the vacuum controlled EGR system on the affected vehicles.

Write the TSB revision number of this bulletin in the "TSB Revision" box at the bottom of the affected service manual pages.
AFFECTED VEHICLES
1995-1996 Mirage 1.5L and 1.8L (California emissions only)
1996 Mirage 1.5L and 1.8L (Federal emissions only)
1997-2002 Mirage 1.5L and 1.8L
2003-2006 Lancer 2.0L
2003-2006 Lancer Evolution
2003 Outlander
1996 Galant 2.4L
1997-1998 Galant 2.4L (Federal emissions only)
1999-2003 Galant 2.4L and 3.0L
1995-1999 Eclipse/Eclipse Spyder 420A and 2.0L Turbo
1996-1999 Eclipse/Eclipse Spyder 2.4L
2000-2005 Eclipse/Eclipse Spyder 2.4L and 3.0L
1996-1999 3000GT 3.0L
1996 Diamante 3.0L
1997-2004 Diamante 3.5L
1996 Montero 3.0L 12 valve
1996 Montero 3.0L 24 valve (Federal emissions only)
1996 Montero 3.5L
1997-2000 Montero 3.5L (Federal emissions only)
2001-2002 Montero 3.5L
1997-1999 Montero Sport 2.4L (Federal emissions only)
1997-1998 Montero Sport 3.0L (Federal emissions only)
1999-2003 Montero Sport 3.0L
1999-2004 Montero Sport 3.5L
1996 Truck 2.4L
1995 Expo/Expo LRV 1.8L and 2.4L (California emissions only)
1996 Expo/Expo LRV 1.8L and 2.4L (Federal emissions only)

fa83f2a.gif
Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Sep 11, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What controls the opening and closing of the EGR solenoid?


ECU controls the EGR system. Check for vacuum to the valve with the engine running. There should be no vacuum. If you have vacuum disconnect the electrical to the vacuum control solenoid and see if the vacuum goes away. If it does you have a command or wiring problem and will need to trace the signal wire back to the ECU.

Oct 25, 2014 | Cars & Trucks

1 Answer

P0403 p0406 p0108


Hi there:
DTC P0403 - Exhaust Gas Recirculation Circuit Malfunction
The causes for a P0403 EGR code could be any of the following:
- Bad EGR solenoid

- Excessive resistance in control circuit (PCM controlled ground) due to an open, chafing or damage to the harness
- Poor connection at the EGR solenoid harness (worn or loose pins)
- Water intrusion at the EGR solenoid harness
- Blockage in EGR control solenoid holding solenoid open or closed causing excessive resistance
- Loss of supply voltage to EGR solenoid
- Bad PCM
DTC P0406 - Exhaust Gas Recirculation Sensor A Circuit HighAccording with the previous fault code, it's an electronic linear egr valve, you need a new one.

DTC P0108 - MAP Pressure Circuit High Input

Potential causes of a P0108 code:
- Bad MAP sensor
- Leak in vacuum supply line to MAP sensor
- Engine vacuum leak
- Short on signal wire to PCM
- Short on reference voltage wire from PCM
- Open in ground circuit to MAP
- Worn engine causing low vacuum


A good way to diagnose if the MAP sensor is to blame would be to compare the KOEO (key on engine off) MAP sensor reading on a scan tool with the Barometric pressure reading. They should be the same because they both measure atmospheric pressure.


If the MAP reading is greater than 0.5 volt off of the BARO reading, then replacing the MAP sensor would likely fix the problem. Otherwise, start the engine and observe the MAP reading at idle. It should normally be about 1.5 volts (varies according to altitude).


a. If it is, the problem is likely intermittent. Check all the vacuum hoses for damage and replace as necessary. You can also try wiggle testing the harness and connector to reproduce the problem.
b. If the scan tool MAP reading is more than 4.5 volts, check the actual engine vacuum reading with the engine running. If it is less than 15 or 16 in. Hg, then the PCM is probably not seeing enough vacuum (due to a worn engine, perhaps) for a given operating condition (which causes a higher than normal voltage signal to the PCM) and setting the code. Repair the engine vacuum problem and retest.
c. But, if the actual engine vacuum reading is 16 in. Hg or more, then unplug the MAP sensor. The scan tool MAP reading should indicate that there is no voltage present. Check that the ground from the PCM is intact and also that the MAP sensor connector and terminals are tight. If the connection is good, then replace the map sensor.
d. However if, with KOEO, & the MAP sensor unplugged, the scan tool shows a voltage reading, then there may be a short in the harness to the MAP sensor. Turn the ignition off. At the PCM unplug connector and remove the MAP signal wire from the connector. Re-attach the PCM connector and see if with KOEO, the scan tool MAP reading shows voltage. If it still does, replace the PCM. If not, check for voltage on the signal wire you just removed from the PCM. If there is voltage on the signal wire, find the short in the harness and repair.
Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Oct 23, 2012 | 2005 Ford Freestyle

1 Answer

What pins on the ECU wire harnes does the ECU use on a 2001 Dodge Grand Caravan Sport


The vacuum line on top of the EGR is required for propper vehicle operation. The vacuum line is what opens the valve when the solenoid is comanded on. As for the MAP sensor check the injector/MAP sensor harness right by the driver side corner of the rear head. The harness tends to melt and cause rough running conditions and misfires. So would the EGR which is a common issue and yes the the whole assembly should be replaced.

Jul 01, 2012 | 2001 Dodge Grand Caravan

1 Answer

Hi, I'm still having problems with my 1993 chev


Hi, these codes indicate both the MAP sensor and the EGR valve. You will need to troubleshoot a bit to see exactly what is wrong. It's possible a vacuum leak could cause both of these codes. I have pasted a procedure to check the MAP sensor below using a voltmeter. If you can run this test and tell me the results, it will help to diagnose the problem. You should also check all of the vacuum hoses, including the ones from the intake manifold to the EGR solenoid and from the solenoid to the EGR valve. The run some jumper wires from the battery to the EGR solenoid pins to see if the solenoid clicks open.

TESTINGSee Figures 3, 4 and 5
  1. Backprobe with a high impedance voltmeter at MAP sensor terminals A and C.
  2. With the key ON and engine off, the voltmeter reading should be approximately 5.0 volts.
  3. If the voltage is not as specified, either the wiring to the MAP sensor or the ECM may be faulty. Correct any wiring or ECM faults before continuing test.
  4. Backprobe with the high impotence voltmeter at MAP sensor terminals B and A.
  5. Verify that the sensor voltage is approximately 0.5 volts with the engine not running (at sea level).
  6. Record MAP sensor voltage with the key ON and engine off.
  7. Start the vehicle.
  8. Verify that the sensor voltage is greater than 1.5 volts (above the recorded reading) at idle.
  9. Verify that the sensor voltage increases to approximately 4.5. volts (above the recorded reading) at Wide Open Throttle (WOT).
  10. If the sensor voltage is as specified, the sensor is functioning properly.
  11. If the sensor voltage is not as specified, check the sensor and the sensor vacuum source for a leak or a restriction. If no leaks or restrictions are found, the sensor may be defective and should be replaced.

jturcotte_2322.gif

Fig. Fig. 3: Location of the MAP sensor-TBI system shown


jturcotte_2323.gif

Fig. Fig. 4: Probe the terminals of the MAP sensor to check for proper reference voltage

jturcotte_2324.gif

Fig. Fig. 5: Manifold Absolute Pressure (MAP) sensor wiring diagram



EGR solenoid:
jturcotte_628.jpg


EGR valve:
jturcotte_629.jpg

Sep 23, 2011 | 1993 Chevrolet K1500

1 Answer

I have an oldsmobile cutlass ciera 3.0 V6,I recently had to replace the egr valve,and happened to notice there was no vacuum pressure to it,so,I uninstalled the egr vacuum solenoid,and purchased a new...


Hi, one part is the solenoid and the other is a sensor (diagnostic switch). The vacuum supply from the carburetor goes to the solenoid, which has 2 ports. The other port goes to the EGR valve. There should be a "T" in that line with a hose running back to the sensor. The computer will turn on the solenoid when it's appropriate to pass exhaust gas back thru the intake. When the computer turns on the solenoid, the valve will open and the sensor will also detect the vacuum to let the computer know that the solenoid did indeed pass vacuum to the valve. I don't think it matters which port you plug the lines into on the solenoid, but the sensor must T off the line that goes to the valve. Please let me know if you have more questions, and thanks for using FixYa.
jturcotte_1941.gif

Jul 17, 2011 | 1984 Oldsmobile Ciera

1 Answer

1997 yukon keeps blowing ECM-1 fuse, 20 amp. Ran for awhile after replacing, then blew fuse again, and again?


Hi, here is what runs on the fuse: ECM, injectors, coil, MAP sensor, crank sensor, IAT sensor, EGR solenoid. Of these, only the EGR solenoid has a delayed operation. Recommend you disconnect the EGR solenoid to see if the fuse will hold up. The solenoid is next to the thermostat housing as shown below. If the fuse doesn't blow with the solenoid disconnected, replace the EGR solenoid. Please let me know if you have questions and thanks for using FixYa.

jturcotte_830.gif

Jan 15, 2011 | GMC Yukon Cars & Trucks

1 Answer

What is the 1987 pontiac fiero gt v6 check engine light code list?


CODE 12- NO DISTRIBUTOR REFERENCE PULSES ECM. CODE 13- OXYGEN CIRCUIT. CODE 14- COOLANT SENSOR HIGH TEMP CODE 15- COOLANT SENSOR LOW TEMP. CODE 21 - THROTTLE POSITION SENSOR VOLTAGE HIGH.CODE 22 - THROTTLE POSITION SENSOR VOLTAGE LOW.CODE - 23 MIXTURE CONTROL SOLENOID.FOR CARBURETOR ENGINE. CODE 24 -VECHICLE SPEED SENSOR. CODE 32 - BARO CIRCUIT LOW.CODE 32 - FUEL INJECTED EGR VALVE VACUUM SWITCH SHORTED TO GROUND.OR EGR VALVE SOLENOID CIRCUIT OPEN. CODE 33 - MAP SENSOR.CODE 34 - VACUUM SENSOR OR MAP SENSOR.CODE 35 - IDLE SPEED CONTROL. CODE 41 - EST CIRCUIT. CODE 42 - ELECTRONIC SPARK TIMING.CODE 43 - ELECTRONIC SPARK CONTROL UNIT. CODE 44 - LEAN EXHAUST.CODE 45 - RICH EXHAUST. CODE 51 - PROM OR MEM CAL.CODE 52 - CALPAK. CODE 53 -EGR VALVE CARBURETED ENGINE THE EGR VALVE VACUUM SENSOR HAS RECEIVED IMPROPER EGR VACUUM. CODE 54 - M C SOLENOID CARBURETED ENGINE MIXTURE CONTROL SOLENOID SHORTED OR FAULTY ECM.CODE 54- FUEL INJECTED ENGINE FUEL PUMP VOLTAGE IS LOW.CODE 55 - ECM MAKE SURE PCM GROUND CONNECTIONS ARE TIGHT.IF OKAY.REPLACE THE ECM.

Mar 27, 2010 | 1987 Pontiac Fiero

1 Answer

2003 4.0 V6 explorer with the vacume line off the egr it runs, but runs rough. when the vacume line is hooked up to the egr it cuts off. i put a new egr on and it did the same thing please asap..


First. Check the vacum routing from the egr. facing the engine, the vac.
line should go to the right and connect to the egr vacum regulator
solenoid. The line from the solenoid to manifold vacum. The solenoid
is also connected to the powertrain ctrl. module And some models,
have a egr sensor. the two vac.lines from the sensor(if equipped)go to
the exaust below the egr valve. The three wires from the sensor go to the pcm. At this I would plug in the obd2 scanner if no vac.leaks or
bad connections have been found. This can narrow the field greatly.
You can stop by an autozone/napa etc. they will scan it for free.
I hope this helps. Good luck.

Feb 03, 2010 | 2003 Ford Explorer Sport

2 Answers

P0401 code Mercury Cougar 2000. DPFE sensor?


  1. Have tried cleaning out the throttle body? Carb cleaner and a rag should do the trick. Also, try bypassing the vacuum solenoid. First, remove the vacuum line from the solenoid, start the car, and then connect the vacuum line directly to the EGR valve. The car should run very rough and die. If not, then there is still something blocking the system (since you replaced everything, it might be down in the pipe (between valve and exhaust)). Also, ensure that the vacuum is strong enough by ensuring that the lines sticks to your fingers. Final possibility is that your new sensor is bad. You can do a voltage check (with igntion turned toon: 1 wire at 5 volts, 1 wire at 0 volts and 1 wire at about .5 tp 1.1 volts). The aftermarket sensors are not always of the best quality.

Jun 01, 2009 | 2000 Mercury Cougar

1 Answer

96 cavalier 2.4 starts runs great -chokes


Check the crankshaft position sensor. If the plug is loose or the sensor itself is bad it will cause similar problems

Aug 23, 2008 | 1988 Chevrolet Cavalier Z24

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

173 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...