Over hearing
Asked by Juan Carlos Apr 19, 2018 at 01:42 AM about the 2003 Pontiac Grand Am GT
Question type: Maintenance & Repair
My car over heats to the point that it
stalls but when I pull over and release
and release pressure from the coolant
resevor and start it again it runs at
normal temp for the rest of the ride
could this be the thermostat not
opening in time... Ive replaced it 5
times and does the same thing I could
really use some help
3 Answers
beatupchevy answered 6 years ago
if the head gasket wasn't bad before then driving it hot till it shuts down will do it in , what does the exhaust look like ,look under the oil fill cap what do you see ?
Check that your radiator cap is releasing at the proper pressure. No pressure is held in the reservoir, just coolant that has already expanded beyond the capacity of the cooling system. When cool, the coolant returns to the radiator. You have already proven the thermostat is OK by the fact that you have replaced it 5 times with no effect. Time to look elsewhere. Could be that your water pump has failed, your system has a blockage somewhere, or it is over or under filled.
