ws6-dave

i have a 2001 ws6 trans am auto
my temp gauge creeps up to the redline on the highway
the air dam is in place
the fans turn on
the thermastat opens
and i think i bled all air from the system
the car runs fine and doesn't boil over
when i turn the heater on the temps goes back to normal with in a minute and stays there
any ideas?

thanks

astan84

Check water pump? Possible heater core restriction. A system flush isn't a bad idea too.

ws6-dave

water pump seems to be working fine
heater blows hot
if i turn the heater on the car runs at a normal temp
i'll try the flush next

41863nj

this same thing happened to a friend of mine....check bearings in the water pump, that's what his problem was...hope this helps ws-6 dave...