i have a 1995 pontiac gran prix gtp 3.4 motor well ive replaced the water pump the thermostat and ive unscrewed the bleeder nut on the hose coming from rad to motor and i still cant get the coolant to circulate help me somebody please im going crazy


Asked by Jan 06, 2014 at 09:55 PM about the 1995 Pontiac Grand Prix 2 Dr GTP Coupe

Question type: Maintenance & Repair

i dont no what else to do to make it circulate again it did befor not now

2 Answers

Norm Davis

Is the t-stat facing the right way, and is it the proper temperature t-stat? There are lots of things that can stop the coolant from circulating but the main culprit is the t-stat. Make sure you don't have any collapsed hoses. You might want to try running the engine with the t-stat removed. If there's still no circulation, you've got some sort of major blockage in the water jacket or passageways. I'm guessing the car was overheating, which led you to replace those parts? You can try a power flush and see what comes out, but if you've got a serious blockage it might require pullling the freeze plugs to see what''s going on.


Good advice from Norm although I think a major blockage in the block is unlikely. More likely thermostat, water pump or a bunch of air in the system that won't move. For some reason modern engines are tough to fill and bleed the air out of. A lot of mechanics have a vacuum tool they use when filling modern cooling systems. You might need to get it professionally done by someone so equipped.

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