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Originally Posted by BruceND75
Good morning,
Just getting started on the day, but have digested all that has been said, and have a question.
First, I can see how you all are pointing away from the PCM as the culprit, and from what you're saying, that makes sense.
However, I've never had a problem with engine overheating -- just the A/C problem. So -- before testing/observing ECT and fan operation -- it seems that the sensor that may not be functioning properly would be related to the AC pressure function.
So, referring back to the desciption of the engine cooling system that GregA provided, the problem would be A/C refrigerant pressure.
So, the question: assuming no problem with PCM, what sensor should be functioning as the A/C refrigerant pressure rises?
Doesn't that seem to be the place to look in my situation?
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To start what exactly is your problem. What is the complaint?
Is the A/C cooling at all?
Right now your situation is not clear or convoluted.