Question about 1989 Cadillac Sedan DeVille

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CHECK ELECTRICAL SYSTEM MESSAGE ON AS TRANSMISSION STUCK 3RD GEAR

Hi~
My information on instrument panel says 'check electrical system'. As soon as message came on my transmission stuck in third or some high gear. Tachometer shows 3300 at forty-nine miles per hour.

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  • 113 Answers

SOURCE: Check engine light was on. OBD II scan said both

The pre cat sensors running lean does not mean they need to be replaced. They are are detecting a symptom. You need to know why.

If you are using a basic scantool (code only) you need to look up the P0000 code.
I thought this an odd code. I looked it up in my Autotap unit and it does not exist. The lowest # P (powertrain) code I have listed is P0016.

A regular scan tool, won't scan transmission or body codes, mu Auto tap doesn't either. You need a Tech 2 from the dealer for transmission codes.

First some history. The first O2 sensor was introduced in 1976 on a Volvo. California vehicles got them next in 1980, then federal emission laws made O2 sensors virtually mandatory on all cars and light trucks built since 1981. And now that OBD-II regulations are here (1996 and newer vehicles), most vehicles now have multiple O2 sensors, some as many as four!
The O2 sensor is mounted in the exhaust manifold to monitor how much unburned oxygen is in the exhaust. The signal from the O2 sensor tells the computer if the fuel mixture is burning rich (less oxygen) or lean (more oxygen).
A lot of factors affect the richness or leanness of the fuel mixture, including air temperature, engine coolant temperature, barometric pressure, throttle position, air flow and engine load. Other sensors monitor these factors too, but the O2 sensor is the master monitor for what's happening with the fuel mixture. Problems with the O2 sensor can throw the whole system out of whack.
The computer uses the oxygen sensor's input to fine tune the fuel mixture for the best balance of power, economy and emissions. The engineering term for this type of operation is "closed loop" because the computer is using the O2 sensor's input to adjust the fuel mixture. The result is a constant flip-flop back and forth from rich to lean which helps the catalytic converter operate at its best and keeps the average fuel mixture in proper balance to minimize emissions. It's a complicated setup but it works.
If no signal is received from the O2 sensor, like when a cold engine is first started (more on that in a minute) or the 02 sensor fails, the computer orders a steady, rich fuel mixture. This is referred to as "open loop" operation because no input is used from the O2 sensor to fine tune the fuel mixture. If the engine fails to go into closed loop when the O2 sensor reaches operating temperature, or drops out of closed loop because the O2 sensor's signal is lost, the engine will run too rich causing an increase in fuel consumption and emissions. As you might have guessed, that will set a code and turn on your check engine light.
How does it work? The O2 sensor produces a voltage once it gets hot. The sensor compares how much oxygen is in the exhaust to the oxygen in outside air. The greater the difference, the higher the voltage reading.
If you ever replace an O2 sensor (and if you're a DIY'er this is something you will do eventually), its important to remember that the O2 sensor needs to "breath" outside air to work. So don't put any grease on the sensor because it could block this air flow.
An oxygen sensor will typically generate up to about 0.9 volts when the fuel mixture is rich and there is little unburned oxygen left in the exhaust. When the mixture is lean, the sensor's output voltage will drop down to about 0.1 volts. When the air/fuel mixture is balanced or at the equilibrium point of about 14.7 to 1, the sensor will read around 0.45 volts.
When the computer reads a rich signal from the O2 sensor it leans the fuel mixture to reduce the sensor's reading. When the O2 sensor reading goes lean the computer reverses again making the fuel mixture go rich. This constant flip-flopping back and forth of the fuel mixture occurs anywhere from 2 to 7 times a second at 2500 rpm on OBDII vehicles, depending on what type of fuel injection system they have.
The oxygen sensor must be hot (about 600 degrees or higher) before it will start to generate a voltage signal. Many oxygen sensors have a small heating element inside to help them reach operating temperature more quickly.
Ok – that was a lot of info on what they do and how they work. The next thing to know is that trouble codes relating to O2 sensors are very common. But you really need investigate further before replacing an O2 sensor just because you got that trouble code. Armed with the information above on how often the O2 sensor "flips" back and forth and AutoTap or another scantool that allows you to monitor O2 sensor voltage, you can be certain whether the O2 sensor itself is really the problem. These sensors can be pricey, so don't just replace them the first time you see that trouble code!

The O2 sensors are expensive, diagnose what really is going on.

Posted on Aug 24, 2009

  • 66 Answers

SOURCE: GEAR SHIFT

The most likely problem is the locking mecanism in your shif selector.
There is a selenoid that prevent the car from get it out of park unless you push the brake pedal while the car is running or the ignition switch is on.
The problem could be in the brake switch itself under the dash or the selenoid in the shifter console.

Posted on Sep 13, 2009

Testimonial: "ILL HAVE IT CHECK THANKS FOR GETTING BACK TO ME SOON QUICKLY"

ftw1952
  • 10319 Answers

SOURCE: shows message - Service Transmission

change fluid and filter

Posted on Jan 16, 2010

  • 173 Answers

SOURCE: 91 cadillac deville air and transmission developed problem

try the pressure switch . it may be bad .

Posted on Mar 24, 2010

Magaiver
  • 707 Answers

SOURCE: 98 catera transmission module or location.tranny

Usually located on the transmission. There is also one for reverse lights.........Hope this helps.

Posted on Aug 15, 2010

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1 Answer

Having another Electrical Problem with Car


Speedometer and/or Odometer Inaccurate or Inoperative

Step

Action

Yes

No

Schematic Reference: Instrument Cluster Schematics
1

Did you perform the Instrument Cluster Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Instrument Cluster

2

  1. Install a scan tool.
  2. Raise the vehicle's drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Start the engine.
  4. Place the transmission into drive for automatic transmission or third gear for manual transmission.
  5. With the scan tool, observe the Vehicle Speed Sensor parameter in the PCM Engine Data 1 list.

Does the Vehicle Speed Sensor parameter match the speedometer display?
Go to Step 3
Go to Step 4

3

Does the odometer operate properly?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 4

4

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?
Go to Step 5
--

5

Operate the system in order to verify the repair.

Did you correct the condition?
System OK
SERVICE VEHICLE SOON
The IPC illuminates the SERVICE VEHICLE SOON in the following conditions:
?€¢
The BCM detects certain malfunctions in the lighting system. The IPC receives a class 2 message requesting illumination from the BCM.


?€¢
The IPC detects a loss of class 2 communication with the BCM.

Jul 28, 2015 | 2004 Pontiac Grand Am

2 Answers

WHY DOESNT MY 2003 CADILLAC SEVILLE HAVE ANY POWER AND DOESNT WANT TO SHIFT EASILY


1. Verify the exhaust system is not plugged. Check for less than 1.5 PSI backpressure at 2,000 RPM in park, or open the exhaust before the converter.

2. Check the Manifold Absolute Pressure Sensor (MAP) for 4.8-5.0 volts Key On Engine Off (KOEO) and about 1 volts at idle.

3. Check actual engine vacuum at idle at 2000 RPM.

4. Unplug the Mass Air Flow (MAF) sensor, reset fuel trim to 0%, and road test. ALSO CHECK FOR FAULT CODES IN THE OBD SYSTEM.

Mar 28, 2015 | 2003 Cadillac Seville SLS

1 Answer

How to replace evapotator coil


in a word, alldata.com

why would you think its bad. it leaks?????????????
why not ask for diagnosis help if it dont leak.
(why do the hardest job first?)_?

ok,
  1. Properly disarm the airbag system. Refer to the disarming procedure for additional information.
  2. If equipped with a navigation system, remove the right-hand lower B-pillar trim panel and right-hand rear quarter trim panel.
  3. Remove the front floor console.
  4. Remove the transmission selector lever.
  5. Remove the windshield side garnish moldings and cowl panels.
  6. Remove the steering column cover.
  7. Remove the left-hand instrument panel side finish panel.
  8. Disconnect the bulkhead electrical connector.
  9. Remove the parking brake release handle screws.
  10. Disconnect any remaining electrical connectors from the under the left side instrument panel.
  11. Remove the steering column pinch bolt.
  12. To avoid damage to the clockspring, do not allow the steering column shaft to rotate while the intermediate shaft is disconnected.
  13. Remove the instrument panel center braces.
  14. From under the right side of the instrument panel, disconnect the bulkhead electrical connector, ground strap bolt and any remaining electrical connectors.
  15. Remove the cowl panel grille to access an instrument panel mounting bolt. Remove the bolt.
  16. Remove the instrument panel defroster grille.
    WARNING To avoid damaging the sun load sensor electrical connector, remove the grille just enough to remove the connector.
  17. Remove the remaining top mounting bolts that were under the defroster grille.
  18. Disconnect the antenna cable lead.
  19. Remove the right-hand instrument panel side finish panel.
  20. Remove the ground strap bolt below the center console section.
  21. If equipped with a navigation system, disconnect the global positioning system (GPS) antenna.
  22. If equipped with a navigation system, disconnect the audio unit amplifier connectors and position the wiring harness so that it can be removed with the instrument panel.
  23. Remove the right and left side instrument panel mounting bolts.
  24. Disconnect the in-vehicle air temperature hose and remove the instrument panel.
  25. Installation is the reverse order of removal. Tighten the instrument panel mounting bolts to 22 ft. lbs. (30 Nm).

Jul 07, 2014 | 2004 Lincoln Aviator

1 Answer

I need to know how to remove the dashboard froma 03 taurus.


SECTION 501-12: Instrument Panel and Console 2003 Taurus/Sable Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 01/21/2004 Instrument Panel adobe.gif Printable View (307 KB) Removal and Installation
  1. Depower the supplemental restraint system (SRS). For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering in Section 501-20B.
  1. If equipped with a floor console selector lever, remove the selector lever. For additional information, refer to Section 307-05.
  1. Remove the front door scuff plates.
    a0006900.gif
  1. Position the front door weather-strips aside.
  1. NOTE: When installing the A-pillar trim panels, be sure the alignment tabs are positioned correctly.
    Remove the A-pillar trim panels.
    a0006901.gif
  1. NOTE: Lift upwards on the rear edge of the defroster grille then slide rearward to remove.
    Remove the defroster grille.
    • If equipped, disconnect the sunload/headlamp sensor electrical connector.
    a0006902.gif
  1. Remove the three instrument panel cowl top bolts.
    a0007057.gif
  1. Release the parking brake cable from the parking brake actuator.
    1. Release the cable from the parking brake actuator.
    1. Release the cable conduit from the parking brake actuator.
    gr2431a.gif
  1. Remove the parking brake release handle.
    1. Remove the retainer clip.
    1. Remove the parking brake release handle.
    a0007059.gif
  1. Disconnect the generic electronic module (GEM) electrical connector.
    a0007060.gif
  1. Loosen the bolts and disconnect the bulkhead electrical connectors.
    a0007058.gif
  1. Loosen the bolt and disconnect the steering column bulkhead electrical connector.
    a0007200.gif
  1. Separate the intermediate shaft from the steering column.
    1. Remove the pinch bolt.
    1. Separate the intermediate shaft from the steering column.
    a0007201.gif
  1. If equipped with a steering column selector lever, disconnect the transmission shift cable.
    1. Disconnect the cable from the steering column shift tube lever.
    1. Disconnect the cable from the steering column bracket.
    gr3576a.gif
  1. Remove the pin-type retainers and the passenger side instrument panel insulator.
    a0015520.gif
  1. Disconnect the blower motor, resistor block and blend door actuator jumper harness.
    a0007202.gif
  1. Remove the two instrument panel side finish panels.
    a0007203.gif
  1. Remove the four instrument panel cowl side bolts.
    a0017322.gif
  1. NOTE: This step requires an assistant.
    Remove the instrument panel.
  1. To install, reverse the removal procedure.

2010&c18=modelyear&c20=n147097&c35=wsm%2cinstrument%20panel%2cs3h%2c501-12%2cremoval%20and%20installation&s=1366x768&c=32&j=1.3&v=y&k=y&bw=995&bh=405&ct=lan&hp=n&[aqe]

Mar 07, 2011 | Ford Taurus X Cars & Trucks

1 Answer

Transmissin won't shift acts like it's stuck in third gear.


In some models the engineers default the tranny to be stuck in the 3rd gear if something is wrong because 3rd gear is considered an "all-purpose" gear. It will allow your car to begin to move from a dead stop, and will also allow it to maintain a highway speed without ruining your tranny or engine.

In my own personal experience, I have had a car that was stuck in 3rd gear. The problem turned out to be the electrical harnesses leading from the TCU to the tranny itself. The harness would pull itself out.

I would double, triple, and quadruple check all the electrical connections dealing with the transmission. It may be as simple as a wire that got pulled out of the harness and could be shorted out; which can cause your problem.

In any case, make sure you protect your tranny ID. Its a sweet body your driving. You don't want to be out there exposed on the superhighway going only in 3rd gear, with no other choices.

Dec 22, 2010 | 1995 Cadillac DeVille

1 Answer

Hi sir, i want some details related to the gear


P0700 Transm.Contr.System Malfunction 17084
P0702 Transm.Contr.System Electrical 17086
P0703 Torque Converter/Brake Switch B Circ Malfunction 17087
P0705 Transm.Range Sensor Circ.(PRNDL Inp.) Malfunction 17089
P0706 Transm.Range Sensor Circ Range/Performance 17090
P0707 Transm.Range Sensor Circ Low Input 17091
P0708 Transm.Range Sensor Circ High Input 17092
P0710 Transm.Fluid Temp.Sensor Circ. Malfunction 17094
P0711 Transm.Fluid Temp.Sensor Circ. Range/Performance 17095
P0712 Transm.Fluid Temp.Sensor Circ. Low Input 17096
P0713 Transm.Fluid Temp.Sensor Circ. High Input 17097
P0715 Input Turbine/Speed Sensor Circ. Malfunction 17099
P0716 Input Turbine/Speed Sensor Circ. Range/Performance 17100
P0717 Input Turbine/Speed Sensor Circ. No Signal 17101
P0721 Output Speed Sensor Circ Range/Performance 17105
P0722 Output Speed Sensor Circ No Signal 17106
P0725 Engine Speed Inp.Circ. Malfunction 17109
P0726 Engine Speed Inp.Circ. Range/Performance 17110
P0727 Engine Speed Inp.Circ. No Signal 17111
P0730 Gear Incorrect Ratio 17114
P0731 Gear 1 Incorrect Ratio 17115
P0732 Gear 2 Incorrect Ratio 17116
P0733 Gear 3 Incorrect Ratio 17117
P0734 Gear 4 Incorrect Ratio 17118
P0735 Gear 5 Incorrect Ratio 17119
P0740 Torque Converter Clutch Circ Malfunction 17124
P0741 Torque Converter Clutch Circ Performance or Stuck Off 17125
P0748 Pressure Contr.Solenoid Electrical 17132
P0750 Shift Solenoid A malfunction 17134
P0751 Shift Solenoid A Performance or Stuck Off 17135
P0752 Shift Solenoid A Stuck On 17136
P0753 Shift Solenoid A Electrical 17137
P0756 Shift Solenoid B Performance or Stuck Off 17140
P0757 Shift Solenoid B Stuck On 17141
P0758 Shift Solenoid B Electrical 17142
P0761 Shift Solenoid C Performance or Stuck Off 17145
P0762 Shift Solenoid C Stuck On 17146
P0763 Shift Solenoid C Electrical 17147
P0768 Shift Solenoid D Electrical 17152
P0773 Shift Solenoid E Electrical 17157
P0790 Normal/Performance Switch Circ Malfunction 17174

Dec 20, 2010 | 2006 Renault Fuego

1 Answer

Replacing the agnition switch how to?


SECTION 211-05: Steering Column Switches 2001 Focus Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 09/15/2004 Ignition Switch Removal
  1. Depower the supplemental restraint system (SRS). For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental Restraint System, GENERAL PROCEDURES).
  1. Detach the instrument panel lower panel.
    1. Remove the screws.
    1. Release the fastener.
    e0001946.jpg
  1. Remove the instrument panel lower panel.
    • Disconnect the hood release.
    • Disconnect the data link (DLC) electrical connector.
    e0009940.jpg
  1. Detach the steering column upper shroud.
    • Using a thin bladed screwdriver, release the two clips (one each side).
    e0000671.jpg
  1. Remove the steering column lower shroud.
    1. Release the steering column locking lever (if equipped).
    1. Remove the screws.
    • Remove the ignition key.
    e0000670.jpg
  1. Disconnect the electrical connectors.
    • Disconnect the ignition switch electrical connector.
    • Disconnect the turn signal/flash-to-pass switch electrical connector.
    e0001776.jpg
  1. Remove the ignition switch.
    • Release the clips.
    e0000394.jpg
Installation
  1. To install, reverse the removal procedure.
  1. Repower the supplemental restraint system (SRS). For additional information, refer to Supplemental Restraint System (SRS) Depowering and Repowering (501-20B Supplemental Restraint System, GENERAL PROCEDURES).

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Apr 01, 2010 | 2001 Ford Focus

1 Answer

I just rebuilt my 4l60e and reinstalled and now i have reverse, manual 1, manual 2 and nothing more. there was a check ball stuck in the separator plate i just assumed it was stuck from trash or...


Note that many problems that show up as transmission issues are actually PCM or electrical, and may be external to the transmission. Try a different PCM, and check for chafing where the cables come out of the PCM.

The transmission is on the same fuse as the MAF, O2 sensors and at least one other sensor - if an O2 shorts out, it will blow the fuse and the trans will go into limp-home mode. Be sure the trans has power and the fuse is not blown before doing anything else.

Limp mode is a fault mode in which the transmission either loses electrical power or the PCM deactivates all of the electronics. The transmission will default to max line pressure. The driver will have Reverse and 3rd, with manual 2nd available by putting the gearshift in 2 or 1 (doesn't matter). 1st, 4th, and TCC lockup will not be available. It will not hurt the car to drive it like this for short periods, but use manual 2nd to get the car moving, and be aware that the trans will generate more heat than normal while operating in limp-home mode due to increased torque converter slippage during 2nd gear starts and no lockup in 3rd gear.

Check the wire harness clip on the transmission, passenger side by the catalytic converter. Look for any damages due to corrosion or brake in the wire leads. it's common for the clip to brake and the wire harness to loosen causing the transmission in to limp mode. Good luck and keep me posted, be glad to help you get your transmission running again soon and please rate.

Check for check ball wear on the separator plate and address it if needed. The 1-2 check ball wears out and sometimes the check ball blows through or sticks in the plate causing troubles.

Just thought I would point out a few items to think about. Good luck.

Jan 10, 2010 | 1995 Chevrolet Tahoe

2 Answers

My 2000 ford f 150 is leaking antifreeze on passenger side by transmission. my heater only blows out the defrst and smells like antifreeze and films up the inside of my window, then when i start my truck i...


the heater core is definitely leaking
Heater Core Removal
Disconnect the battery. For additional information, refer to Section 414-01 .
  1. Drain the cooling system. For additional information, refer to Section 303-03A .
  1. Remove the instrument panel. For additional information, refer to Section 501-12 .
Instrument Panel Removal
  1. If equipped with power seats, move the seat fully rearward.
  1. If equipped with adjustable pedal system, move the pedal to the full forward position.
  1. If equipped with a manual transmission, place the transmission in second gear.
  1. Disconnect the battery cables. For additional information, refer to Section 414-01 .
  1. Position the battery junction box (BJB) aside.
    • Release the mounting tabs.
  1. Remove the bulkhead electrical connectors from inside the engine compartment.
    1. Loosen the bolts.
    1. Disconnect the bulkhead electrical connectors.
  1. Remove the bulkhead electrical connector insulator.
  1. Unclip the bulkhead electrical connectors from the dash panel.
  1. Remove the lower instrument panel steering column cover. For additional information, refer to Instrument Panel—Steering Column Cover in this section.
  1. If equipped, remove the valance panel.
    • Remove the two pin-type retainers and release the expander clip.
  1. Disconnect the restraint control module (RCM) electrical connector.
    1. Release the locking tab.
    1. Disconnect the RCM electrical connector.
    • Release the wiring harness locators.
  1. Disconnect the electronic blend door actuator electrical connector.
    • Release the wiring harness locators.
  1. Disconnect the climate control head vacuum harness connector.
  1. Remove the LH and RH front door scuff plates.
  1. Position the LH and RH door weatherstrip seals aside.
  1. Remove the LH and RH A-pillar lower trim panels.
  1. If equipped, remove the alternative fuel control module (AFCM).
    1. Disconnect the electrical connector.
    1. NOTE: The AFCM is attached with Velcro®.
      Remove the AFCM from the vehicle by pulling gently down and to the right.
  1. Remove the LH and RH A-pillar passenger assist handles.
    1. Remove the four screw covers and four screws.
    1. Remove the LH and RH A-pillar passenger assist handles.
  1. Remove the LH and RH windshield side garnish mouldings.
  1. Disconnect the brake pedal position (BPP) switch electrical connector.
    • Release the wiring harness locators.
  1. If equipped, disconnect the adjustable pedal motor electrical connector.
  1. If equipped, disconnect the adjustable pedal motor harness electrical connector.
  1. If equipped, disconnect the clutch pedal position (CPP) switch.
  1. Remove the (A) audio unit ground and the (B) GEM/CTM ground bolts.
  1. Disconnect the LH instrument panel main wiring harness connectors.
    • Release all the main wiring harness locators.
  1. Remove the instrument panel steering column opening cover reinforcement.
    1. Remove the nuts.
    1. Remove the instrument panel steering column opening cover reinforcement.
  1. Disconnect the (A) air bag sliding contact electrical connectors and the (B) anti-theft sensor electrical connector.
  1. Disconnect the remaining electrical connectors on the steering column.
  1. If equipped, disconnect the transmission range indicator from the steering column.
    1. Remove the bolt.
    1. Disconnect the cable.
  1. Lower the steering column.
    1. Remove the nuts.
    1. Lower the steering column.
  1. Remove the instrument panel bolts through the steering column opening.
  1. Remove the instrument panel reinforcement bolt below the LH corner of the cigar lighter and power point.
  1. Disconnect the inertia fuel shutoff switch electrical connector.
  1. Remove the RH ground bolts.
  1. Disconnect the RH instrument panel main harness connectors.
    • Release all the wiring harness locators from the cowl side panel.
  1. Disconnect the climate control wiring harness connector.
  1. Remove the audio unit. For additional information, refer to Section 415-01 .
  1. Remove the antenna lead-in cable from the instrument panel.
    1. Disconnect the three cable locators from the lower instrument panel channel.
    1. Remove the antenna lead-in cable from the instrument panel.
  1. Remove the instrument panel relay cover.
    1. Remove the instrument panel relay cover.
    1. If equipped, disconnect the autolamp sensor electrical connector.
  1. Remove the glove compartment. For additional information, refer to Glove Compartment in this section.
  1. Remove the passenger side air bag module.
    1. Remove the screws.
    1. Disconnect the electrical connector.
    1. Remove the passenger side air bag module.
  1. Remove the instrument panel bolts through the passenger side air bag module opening.
  1. Remove the instrument panel bolt on the relay bracket.
  1. Remove the instrument panel reinforcement bolt below the LH corner of the glove compartment.
  1. NOTE: Position the carpet aside.
    Loosen the instrument panel floor brace.
    1. Remove the upper instrument panel floor brace bolt.
    1. Loosen the instrument panel brace bolts and nut.
  1. Remove the RH instrument panel cowl side nut.
  1. Remove the LH instrument panel cowl side nut.
  1. Remove the instrument panel cowl top bolts.
    1. Remove the covers.
    1. Remove the bolts.
  1. NOTE: This step will require an assistant.
    Remove the instrument panel.
  1. Compress the holding tabs and disconnect the heater water hoses (18472) at the heater core (18476).
  1. Remove the A/C plenum demister adapter (19E662).
    1. Remove the screw.
    1. Remove the A/C plenum demister adapter.
  1. Disconnect the vacuum line.
  1. Remove the heater core bracket.
    1. Remove the screws.
    1. Remove the bracket.
  1. Remove the plenum chamber top.
    1. Remove the 13 screws.
    1. Remove the plenum chamber top.
  1. Remove the blend door assembly from the case.
  1. Remove the heater core.

Aug 09, 2009 | 2000 Ford F150 Flareside SuperCab

1 Answer

Automatic transmission is stuck in 2nd gear (limp mode)


most newer vehicles  have transmission control modules,that go to a default of 2nd or 3rd gear when they go bad!  I had a 91 plymouth stuck in 3rd gear because of this module! could be your problem!    when mine went out, it smelled like something electrical burned inside the the passenger cabin! I would check all the electrical connections on the transmission first    good luck   

Jan 02, 2009 | 1998 Chevrolet K1500

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