2001 Monte Carlo ss with a 3.8 liter motor in great condition. The problem is... check engine light on, Temperature gauge not working and cooling fans stay on for 5 minutes after turning car off.
So I took it to autozone.. p0118... ETC (engine temp control ) There are 2.. I changed them both and changed Thermostat.. I disconnected battery to clear code.. cleared...no CEL while driving.. Then turn car off... upon restart CEL comes on and fans continue to run for 5 minutes extra again after I turn off car... SUMMARY... CEL, Fans running unnecessarily, Temp gauge not working............Solution Relay maybe????
First, thank you for your help. Still not resolved unfortunately. As I said, I replaced the ETC and the engine coolant level sensor on radiator just below cap and the thermostat also with no success. New information is the following... when I start the car I sometimes get a loud whining (like pressure equalizing ) I shut it off and it whines down just like pressure releasing. The car runs great, I cannot detect anything in its operation just no temperature gauge, CEL and cooling fans run. I am stuck as to what the issue may be.