Question about 1996 Pontiac Sunfire

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Overheating ihave a 96 pontiac sunfire that is overheating, my cooling system was pressuring up and making it so the coolent could not flow. i had a rebuilt head installed with a new headgasket, i installed a new waterpump and thermostat. now the cooling system is not pressuring up but it is still overheating. do i have an air lock, are there any tips on removing an air lock, is there somthing i'm not looking at

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If the car is air locked...

Start it up , turn your heat on full blast.Then remove your resevoir cap. Let the car heat up to normal temp , at this point i would check to see if your fan is turning on. If you watch close inside your resevoir it will be bubbles or bubbling, let it run until you have no more air coming out.(no bubbles, if nessesary top off with fluid to the recomended level. Tightnen up your cap ,making sure it is seated properly and IS tight. Then go for a drive see if your still overheating.

Posted on Jul 05, 2008

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