91 GTA 5.0 TPI doesn't get warm according to her guage... I replaced the thermostat and cooling sensor a couple years ago. The car is idling a little high bc of this as the computer seems to be giving the car more fuel.


any ideas? maybe the thermostat is stuck open?

 

Have you attempted to measure the temperature externally, via an infrared thermometer or even by hand (don't burn yourself though)?

Could be the temp gauge sender, too.

 

i never changed the temp gauge sender.. I might try that.. im not sure if I have a infrared termometer

 

How long are you running it, I know mine takes what seems like a long time to get to operating temp.

 

When I first got my 88 IROC Z it was drinking gas, would not warm up. Would only warm up a little if I sat at a stop light. Thermostat was stuck wide open.

 

I got a smell of gas around my car with no visible leaking... the car doesn't warm up at all, no matter how long I lets her warm up.

 

Best way to see what the engine is seeing is to connect a reader. Run to a parts store and have them plug in and check the reader to the gauge,

 

Do you get coolant flow cold ?
You can remove the radiator cap and watch flow.

 

coolant flow cold? What am I looking for watching the fluid.. make sure its moving?

 

If the cooling is flowing when the engine is first started up I would think the thermostat is stuck open.

 

changed thermostat... seemed to fix it.. now I got a coolant leak.. something must not be tight enough.