Question about 2002 Pontiac Grand Prix
What engine is in the car should be 3.8 liter you must have a thermostat in to keep it from over heating it will get hotter and hotter if you don't you diden't say if you were boiling over pressure was forcing out the water all makes a bid differnce in trouble shooting cooling system need more info on this one sorry
Posted on Jan 21, 2013
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Posted on Jan 02, 2017
SOURCE: car runs hot
CHECK YOUR RELAY IN YOUR FUSE BOX UNDER THE HOOD ON THE DRIVERS SIDE INNER FENDER. THE A/C AND THE HEATER RELAY ARE SAME. CHECK AND SEE IF THE A/C REALY WORKS BY TURNING ON YOUR A/C SWITCH. THE ELECTRIC FAN SHOULD START RIGHT AWAY. OTHERWISE YOU HAVE TO WAIT TILL THE ENGINE ACHEIVES OPERATING TEMP TO KICK THE FAN ON. IF ONE DON'T WORK AND OTHER OTHER DOES... SWITCH THE RELAY AND SEE IF IT WORKS. BEEN THERE AND DONE THAT. $9.00 FOR A NEW RELAY AT CHECKER AUTO PARTS.
Posted on Feb 14, 2009
ok, its time for a radiator flush. there is major sludge in the internals of this radiator. Make sure the thermostat is in the correct position as well. I've seen many cars come into my shop with the thermostat inserted backwards.
Posted on Mar 13, 2009
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