Question about 1999 Jeep Grand Cherokee

Open Question

Transmission overheat light & OD off light stays on

I replaced trans. now overheat light & OD off lights stay on. I checked cooler lines they are not clogged trans not actually hot but light is on no codes in ECM.

Posted by on

  • 2 more comments 
  • frnkthom2 Jan 28, 2009

    I checked all that.i checked all cooling lines and blew out radiator with compressed air to be sure no lines were clogged.trans. shifts fine. is there a difference between 99 and 2001 models? new trans came out of 01 model.

  • frnkthom2 Jan 28, 2009

    I checked all that.i checked all cooling lines and blew out radiator with compressed air to be sure no lines were clogged.trans. shifts fine. is there a difference between 99 and 2001 models? new trans came out of 01 model.

  • Richard Scordino May 11, 2010

    Pretty likely there is a difference,,, can you re-use sensors from old trans? Easiest way to check is to have someone look up sensors and see if one part # covers both years.

  • Richard Scordino May 11, 2010

    check harness & make sure you did not pinch it between the bellhousing & block. Make sure you have the wires hooked up right. You did not mention, but is trans &od working correctly? If the lines are clear, Do you mean that there is flow through the radiator or from & into trans?

×

6 Suggested Answers

  • 88 Answers

SOURCE: od drive and transmission overheat warning light

hi first of all check the temp sensor on the auto box.also check transmission oil cooler that it is not blocked.when the computer for the auto box detects a problem it turns off the over drive.

Posted on Oct 14, 2008

  • 2 Answers

SOURCE: aerostar transmission

The aerostar tranny cooler sits too low away from the trans and tends to become blocked and restrict the flow to the tranny It could not hurt to remove it and flush the cooler out I have had a few aerostars and I have had to flush them all,the tranny fluid came out very dark and smelled very burnt it may not solve your issue but maybe. It has solved a shifting issue for me the 1-2 is smooth as silk now.

Posted on Jan 23, 2009

csmock132
  • 4669 Answers

SOURCE: 1996 Ford T Bird obd codes

No, does the transmission still shift gears? Might be a power feed problem.

Posted on Mar 28, 2009

  • 28 Answers

SOURCE: od/off trans temp light comes on. had fluid and

your trans cooler is restricted. most likely it is part of your radiator and if it is restricted you will either need to replace the radiator or install an aftermarket cooler. have your trans cooler flow checked and go from there

Posted on Jul 27, 2009

  • 1 Answer

SOURCE: 2003 dodge ram diesel 5.9 cummins, auto transmission cooler

did you ever get a cooler for cheaper pice

Posted on Jan 28, 2010

  • 1 Answer

SOURCE: I have a 1999 Dodge Ram 1500, 5.2L automatic.

I had the same trouble with my 1999 4x4 and it ended up being the governor pressure switch inside the tranny. Just drop the pan and its only a couple of bolts and unplug the wires just above the pan so dont bother to take it to a shop if you can change the fluid yourself you can change this with no problem and dont have to pay someone to do it for you. It should only be about 140.00 or so for the part at the dealer.

Posted on May 15, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

I just replaced the trans in my 99 durango for the second time in a week it drove great for the first 50 miles then it loses all the gears fluid smells burnt New fluid filter cooler and lines ...


Could it be possible the coolant lines are reversed not allowing the trans fluid to reach the cooler? The pressure line from the trans pump can easily be identified by taking it loose and directing the fluid into a container.

Apr 22, 2013 | Cars & Trucks

2 Answers

I have a 2003 Lexus ES 300 and when I do any highway driving at about 70mph for more than an hour, the transmission fluid overheats and the check engine light comes on. When it cools down, the check engine...


Flush your car's transmission fluid , but don't do it yourself or at local shops take it to Toyota and have them replace fluid and filter . Reason why they use special pumps to extract all fluids properly . And actually replace it correctly other shops the only thing they will do is drop the oil pan and drain the fluid in the oil pan only . There is still fluid all over the lines and torque converter . Recommend dealer all the way , it's only 10-30 $. Different .besides you get genuine parts and fluids . Good luck I hope this help .

Jan 13, 2013 | Lexus ES 300 Cars & Trucks

1 Answer

I have a 2005 Mercury Mariner and the OD off light has been flashing for approx. a year now.....I have had transmission repair work done approx 3 years ago....today my car is in the shop having...


If you are towing behind an RV (flat towing) - stop. It overheats the transmission. Also, the 2nd & 4th gear band are a weak design in this CD4E transmission. Google - "CD4E band failure" or CD4E O/D Light flashing and you will see issues and outside fixes. Make sure you have a trans cooler in front of your radiator. Not all got them. Option on some versions.

Jul 28, 2011 | 2006 Mercury Mariner

1 Answer

I have a dodge 4x4 1500 the trans temp light comes as well as the over drive off light when vehicle is at an idle i then lose overdrive. vehicle is only at an idle for 2 or 3 min. havent even started to...


There is a check valve in the transmission cooling lines on these trucks. This valve is in the line near the radiator on the passenger side. This valve can get stuck and cause the Trans to overheat due to no trans cooler flow. When these Transmission get hot overdrive goes out. Located this valve take the line apart near it and use a small screwdriver and try to free it up. It is spring loaded and should push in and spring out easily. If you can't you must replace it. Don't drive it like that or you could ruin the transmission

Nov 07, 2010 | 1999 Dodge Ram

1 Answer

Auto Transmission problem: Feels like it doesnt shift into OD and accelerates slow as if it stays in one gear. When put in 1st, it feels like the park brake is up of you're riding the brakes.


have you check the oil level on trans and have you change the oil on the engine lately check the levels on both. Usually on engine is too much oil car drags and on trans if low oil it usually stays in gear to protect the trans. your car is telling you check oil. No lubrication some warning lights do not come up for trans

Jun 25, 2010 | 1991 Subaru Legacy

1 Answer

Od/off trans temp light comes on. had fluid and


your trans cooler is restricted. most likely it is part of your radiator and if it is restricted you will either need to replace the radiator or install an aftermarket cooler. have your trans cooler flow checked and go from there

Jul 17, 2009 | 2001 Dodge Durango

1 Answer

1999 ddodge 1500 360 transmission and brake light


red brake light on, low fluid in resovior or park swicth is grd , trans light is on but you didnt say if it's trans or eng over heating, I wil assume it's trans, chech fiter in pan and cooler flow, possible restriction, remove rear cooler line to back of trans left side , stick a hose on it, put trans in nuetral, and start eng , should empty the fluid of trans in about 1 minute, nice good flow, jaust a trickle and you have a blocked cooler or lines. GOOD LUCK RDJRP

Jul 12, 2009 | 1999 Dodge Ram

1 Answer

Aerostar transmission


The aerostar tranny cooler sits too low away from the trans and tends to become blocked and restrict the flow to the tranny It could not hurt to remove it and flush the cooler out I have had a few aerostars and I have had to flush them all,the tranny fluid came out very dark and smelled very burnt it may not solve your issue but maybe. It has solved a shifting issue for me the 1-2 is smooth as silk now.

Jan 16, 2009 | 1995 Ford Aerostar

1 Answer

Od drive and transmission overheat warning light


hi first of all check the temp sensor on the auto box.also check transmission oil cooler that it is not blocked.when the computer for the auto box detects a problem it turns off the over drive.

Oct 14, 2008 | 2001 Jeep Grand Cherokee

Not finding what you are looking for?
1999 Jeep Grand Cherokee Logo

Related Topics:

223 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

60769 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

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

Answer questions

Manuals & User Guides

Loading...