0
Fan for radiator on Pontiac 2002 grand prix se 31l only comes on if the ac is on the car does overheat how could you fix this issue?
Wiki User
∙ 13y ago
This is a real pain to diagnose on the GM cars. In your case I'd start by replacing the coolant sensor. It may not be showing correctly and it's fairly inexpensive. Perhaps that will fix it. I'm Wrestling with an issue myself that I haven't figured out. The fan comes on when I unplug the coolant sensor....which it is supposed to do. It comes on with the A/C, and it comes on when I check the codes...all things it's supposed to do. But it won't come on when the car gets hot enough to overheat.....and it's had two brand new sensors put in. Hope you have better luck than I've had.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Could the radiator be the cause of overheating on a 1996 impala?
Yes, a restricted or leaking radiator can cause the engine to overheat.
Why does my truck overheat and then when I set the heater to defrost it cools down?
Check the thermostat or the radiator. The thermostat could be sticking or the radiator could be plugged.
What will cause a Hyundai Elantra to overheat?
It could be the radiator is clogged. The thermostat could be bad (prevents the coolant from circulating from radiator to engine block)
What causes the engine in a 1997 Pontiac Grand-Prix to overheat?
could be alot of things, either check debris in the coils of radiator or check the thermostat. Make sure shraud is undamaged or you can flush the motor and radiator, a radiator flush can be done yourself or at any quick stop lube shop
Why does 2002 Pontiac Montana overheat?
one issue could be that you need to change your thermostat
What could cause a Pontiac Montana to shut off after 10 minutes but not overheat?
your radiator fan not getting power... make sure that you hear it turn on if not then you have to check the wiring or plug or the fan itself just died...
What could be causing a 1989 Pontiac sunbird gt to overheat?
many possibilities; low coolant, bad thermostat, radiator fan does not work, bad relays/fuses, leakage in coolant system, stopped up coolant system, bad radiator cap, blown head gasket.
Why does my Subaru Forester overheat?
One reasons a Subaru Forester may overheat is because the radiator may need replaced. Another reason could be the thermostat.
Is it safe to drive a car leaking antifreeze?
No it is not. It could be a problem with the radiator, a radiator hose or a water pump. In any situation, it could cause the motor to overheat and damage it severely.
Could serious damage occur if the truck had no radiator and was still driving?
Engine may overheat and seize
Why does 2000 jeep run hot at idle?
A lack of water in your cooling system will cause your 2002 Pontiac Sunfire to overheat. A malfunctioning thermostat can also cause it to overheat.
Why a cavalier overheat?
A car can overheat for several reasons. You may need to replace your water pump. You may have a leak in the radiator itself. You may need to add more 50/50 mix of radiator fluid and water to your car. You could also have leaks or holes in the radiator hoses. You may also need a new cooling fan for the radiator.
