ENGINE CODE P0128

2000 Pontiac Grand Am

Tiny

Fryertuck

January, 19, 2007 AT 10:02 AM

2000 Pontiac Grand Am 2.4L T 35,000 miles
My code scanner gets a engine code P0128
I have replaced the thermostat with a 180 degree thermostat
I have also replaced the coolant temperature sensor
Then I noticed that my engine cooling fans are turning on at 163 degrees when they should turn on at 223 degrees I have also removed the cooling fan relays so the engine could get to 180 degrees and the then the heat is blowing hot. I cleared the code and Code P0128 is back and engine cooling fans still turn on at 163 degrees and run until the engine cools down to 126 degrees. HELP

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1 Answer

Tiny

Fryertuck

January, 24, 2007 AT 7:33 AM

I did some checking about the problem I am having and I am being told that I have a bad Powertrain Control Module or better know as the computer.
Is this possible. Any remarks about this would be appreciated

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