2003 Jeep Cherokee temperature gauge

Tiny
BA12
  • MEMBER
  • 2003 JEEP CHEROKEE
  • 4 CYL
  • AWD
  • AUTOMATIC
  • 88,567 MILES
Temp gauage was flucation use scan said ect sensor was bad replaced but still have same problem took to garage they put scan on read same code PO117. They tool me engine wans't overheating problem is tem gauge they would have to replace insterment panel cost 500 to 700 hunder dollars would anybody have and other ideas. Just to try. To give more info engine light comes on tem gauge goes from 100 to 260 back and forth then after time which could be 20 minute to maybe 45 minutes gauge woul settle were it should but engine light would still stay on this may last for 24 hrs then same thing car has no problems running
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Wednesday, August 5th, 2009 AT 3:07 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 107,922 POSTS
It could be the cluster. Has anyone tried replacing the temp sending unit?
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Wednesday, August 5th, 2009 AT 6:49 PM
Tiny
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Yes the ECT sensor was change
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Wednesday, August 5th, 2009 AT 8:34 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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They make a thermometer that can be placed in the top of the radiator to check coolant temp. I believe parts stores will lend or rent them. What I suggest is to get one, with the engine cold, open the rad and place it in, allow the engine to heat up and check what temp the coolant gets to. It should end up around 200 degrees F. That way you will know if it is overheating.
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Wednesday, August 5th, 2009 AT 10:53 PM
Tiny
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Thanks but already check tem with scanmeter tem was check while gauge was going up and down tem was 208
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Thursday, August 6th, 2009 AT 12:29 AM
Tiny
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Just a follow up. Changed ect sensor /thermostat/and instrument cluster. Still have same problem tem needle just goes up and down and engine stays on somes times temperature settles were it should but enghine light stays on sometimes temperature guage stays were it should and engine light goes out. Now i'am being told it could be Ecm is their any why to check this out is PCM the same thing
I donate 10 dollars would be willing to donate more not looking to get something for nothing

thanks
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Monday, August 17th, 2009 AT 2:12 PM

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