2005 Jeep Liberty Trans temp light

2005 JEEP LIBERTY
88,000 MILES • 3.7L • 6 CYL • AUTOMATIC
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TEC444
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  • 2 POSTS
Oil light comes on then several minutes later the brake pedal becomes very rigid and then the jeep doesn't want to move . If I wait 3-4 hours I can start the car again and it may drive fine for a week or so . Took it to several transmission specialists and car did not duplicate the problem after ten test drives . No codes or lights ever was received by the diagnostic services. . Took it to dealership they reset the engine oil light and couldn't find any problems . I paid 110 dollars to change transmission fluid it worked fine for several weeks but now it seems to be doing it on a weekly basis . Took it to local auto parts store to see if the code could be read and they said it wasn't communicating with the brain . Car shifts and drives perfectly until this problem occurs . It's been to 5 local shops but no one can duplicate the symptoms . Please help
Apr 5, 2014 at 2:48 PM
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JACOBANDNICKOLAS
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Please understand, without a trouble code, this becomes a guessing game. My question is this, when the oil light comes on, do you ever hear knocking or ticking from the engine? Has the oil sending unit been replaced? I am questioning if the computer is trying shut down the engine due to what it thinks is low oil pressure causing a drop in engine vacuum; thus making the brake pedal hard to push and not allowing the engine to rev and go.

It's just a thought at this point. Let me know.
Apr 5, 2014 at 7:10 PM
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TEC444
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No noise or ticking . I will check or replace the oil sending unit and see if that fixes the problem. I will keep you updated .
Apr 6, 2014 at 7:00 AM
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