Question about 2000 Jeep Grand Cherokee

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4.0 auto will not shift into overdrive and check engine light is on

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  • Anonymous Mar 16, 2014

    won't shift into overdrive and a check engine light came on

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The check engine light is on to alert you to a failure in the system, that is most likely related to the loss of overdrive, have the system tested for the fault code that is stored in the computers memory, any Kragen or Autozone parts store will do this test for free. You will most likely get a code for a loss of signal from the VSS (vehicle speed sensor), that loss will cause the no OD symptom you have.

Posted on Nov 13, 2010

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Posted on Jan 02, 2017

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1993 jeep grand cherokee is stuck in second gear, the overdrive button is not functioning, and getting the data control center says service 4wd switch


wow no engine size stated, the 5.2L run a special trans... so....
hopeless to help you much.
zj jeep with automatic.
it didnt lie, it told you to service it, so take it to a shop and let the work on this old dog..
stuck , now what does that mean.
the shift lever lever stuck, or its cable failing end to end.? or?
or shifts from 1 to 2 and hangs there.
or down shifts from 3 to 2 and and hangs there
DIY ? question is that it? you never said intentions.....
so we open the 93 ZJ book and what do we see.
ax-15 stick box, seems not.
the aw-4 auto , electronically shifted with TSM (scan it yet?)
and the 46RH auto. used on the 5.2L, has no TCM brain.
its a Hydramatic.
here are the OD words off the 46h page

Overdrive Control Switch
The overdrive control switch is located in the instrument
panel. In the On position, automatic shifts
into fourth gear overdrive will occur. In the Off position,
the switch overrides the powertrain control module
preventing a shift to overdrive fourth gear range.
The switch has an indicator light that illuminates
when overdrive is turned off. The switch also resets
when the ignition key is turned to the OFF position
so that the automatic overdrive feature is restored.
The use of fault codes is employed to help diagnose
the electronic components that operate the overdrive
unit and torque converter clutch.

Jul 16, 2016 | 1993 Jeep Grand Cherokee

2 Answers

2000 GMC Jimmy won't shift to overdrive. New seal, screen, & sensor that shows what gear it is in and fluid changed. Worked for 3-4 weeks now "Service Engine Soon" light on and having same symptoms.


The Internet, though, has a large number of web sites where
you can buy service manuals and schematics from bookstores,
publishers, and other collectors. Here is just a sampling of
what sites are out there:

Chilton Repair Manuals
http://www.chilton.cengage.com/

Haynes Publishing
Haynes auto manuals

Haynes is the information resource for the DIY enthusiast

Factory Automanuals
http://www.factoryautomanuals.com/
Factory Auto Manuals is specialist dealer in quality used factory car...



Vintage Books
Vintage books com Rare used and out of print books

Vintage books com Rare used and out of print books

AutoLit
http://www.autolit.com/home.htm

Aug 30, 2015 | GMC Cars & Trucks

1 Answer

The Transmission shifts very hard after the first shift. Check engine light is on as well as the Green overdrive light blinks off and on. Speed sensor was cleaned and even replaced.


Your on the right track. Have you scanned the PCM, what codes did you get? If not and you changed the vehicle speed sensor,(VSS) did you check the (OSS) output shaft speed sensor, it will cause torque converter lock up and hard shifting and that pesky OD light flashing. I have also found that clutch packs inside auto tranny's dry out. Ford and some aftermarket companies sell a fluid that will recondition the clutch packs.

Mar 10, 2015 | 1997 Ford Thunderbird LX

2 Answers

2004 Ford Sportrac having problems with trans OD flashing on and off and sticking in gear?


When the Torque Converter Clutch (TCC) isn't engaging or locks in engagement the light flashes a warning...The TCC solenoid may stick due to dirty transmission fluid...If the Check Engine Light
(CEL) is not lit have your transmission fluid changed...If it is lit the code is probably pointing at a defective TCC, Computer (PCM) or the clutch itself... you can take the vehicle to an auto parts store and have them read and define the trouble code for free...saailer

Feb 19, 2015 | 2004 Ford Explorer Sport Trac

1 Answer

Check engine light on motor idles up and transmission will not shift to overdrive


Could be an idle air control valve,but to be 100%,you need to get the codes pulled and write them down. Most Advance auto parts stores will pull the codes for you for free.

Sep 26, 2012 | Cars & Trucks

1 Answer

What cause overdrive light to come on while


This is like a check engine light for your transmission. Something is slipping or out of its values. Get it checked out with a code reader.

Apr 07, 2010 | 2004 Toyota Tundra

1 Answer

Transmission stays in overdrive


If check engine light is on, have the codes read by your mechanic or local auto parts superstore.

Some automobiles have a switch on the dashboard or on the gear shift that activates the overdrive function on or off.

Apr 01, 2010 | 2001 Mitsubishi Mirage

1 Answer

Blinking overdrive light , not shifting


Have the vehicle scanned.The overdrive light is like the check engine light for the transmission. There are transmission codes in the ecm if the overdrive light is blinking.

Mar 27, 2010 | 2002 Ford Explorer Sport Trac

1 Answer

1997 siera 1500 4x2


it can be a shift selonoid on your tranmission i just put one in my yukon it had the same problem

May 05, 2009 | 1997 GMC Sierra

1 Answer

1996 TBird 4.6 auto/overdrive trans problem


Your transmission fluid contain water,thats why the colour of the fluid changed to pink.And of such the clutch is slipping causing the engine to reve up before shifting - Check transmission cooler.

Aug 21, 2008 | 1996 Ford Thunderbird LX

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