L
lowfade2001
Guest
my 1992 grand prix,,3.4,,i had a thermastat and coolant flush done. when the guy got done he backed the car out to let it run,,and warm up,,after about 5 min my gauge was reading 240,,they found stop leak when they flushed the system. the guy says i may nedd a radiator. do i? what going on with this car. when i drive it on highway the gauge stays down,,in stop and go it heats up.