My 2005 chevy cavalier
Dear JK: car is running hot,ac cycles on and of,transmission
shifts hard on occasion ,electric fan starts and stops






JK:
Hello and welcome. First things first. Be sure that the battery cables are tight,
and check all fuses. These different problems could be a wiring problem
somewhere, ground problem. Nothing common comes to mind. Could also be a
pcm(computer) or pcm connector problem. Need to get the system scanned for
codes in order to an idea of what is going on. Before that, you could disconnect
the pcm connectors(with key off) and look to see if any corrosion in pcm or
connectors.
It is under the hood, near the passenger side top of strut tower. Let me know
what you find, thanks.

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Chevrolet cavalier overheating and trans shifts hard