Thread: P0128 CEL
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Old 08-31-2015, 12:42 PM   #3
Slow_86
Cpt. Slow
 
Join Date: Feb 2014
Drives: 2015 series.Blue
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Quote:
Originally Posted by humfrz View Post
I'd guess either your car's thermostat stuck open or it "hiccupped" and tossed you a code.

I'd suggest you erase the code and see if it comes back.

If it does, you may wish to read the coolant temperature with an instrument.


humfrz
I cleared it. Code didn't come back, but i did notice that the temps would drop down to the line right above cold when ever i started driving but would move back to the middle when sitting at idle.

So pretty sure it's a stuck open thermostat.
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