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2000 Chevy Malibu Engine Codes

Tiny
SHARISHAFER
  • MEMBER
  • 2000 CHEVROLET MALIBU
Engine Cooling problem
2000 Chevy Malibu 6 cyl Front Wheel Drive Automatic

While driving I can feel a hesitation and then my temp gauge drops below 100 then goes back up constantly. When it does this my car accelerates or rpms increases and causes it to shift very rough. My a/c also shuts off and on. I had it scanned and came up with to codes: P0118 & P1115. I was told by an establishment that the code was ect sensor and it could cause the problem with the transmission and other areas of the car. My question is; can it effect the transmission and the a/c to shut off and on or not?
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Wednesday, July 9th, 2008 AT 9:19 PM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
A bad ECT will cause problems and is a mian input to the PCM, if it spikes it can cause strnge behavior, with two ECT codes there is no room for doubt, something in that circuit needs work.
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Wednesday, July 9th, 2008 AT 9:23 PM
Tiny
SHARISHAFER
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  • 3 POSTS
Thank you for your help. I have had the car in 3 different shops and have had issues with each of them so just want to confirm. Also, is this sensor something that I or my husband could change ourselves?
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Wednesday, July 9th, 2008 AT 9:49 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Yes, just do it when the engine is cold. Some antifreeze will leak out.
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Wednesday, July 9th, 2008 AT 10:32 PM

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