Question about 2001 Pontiac Grand Am SE

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Radiator pressure cap on 2001 Grand Am GT

They told me I needed a new radiator cap. I have bought two in the last month , one today and when I got home and checked it, it was already broke. It is on the reservoir tank on this car and it looks like it tries to **** it down inside the tank because I have to take a screwdriver to pry it off and the top part comes off completely, the other is stuck in the hole in the tank as if being sucked down inside

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If it is on the reserve tank not the radiator. then there should be a air vent on it somewhere. it might even be a hose coming from the top of the tank. Make sure that it is not plugged. When your car gets hot it overflows the water in the radiator in to the reserve tank, as it cools it sucks it back. if you don't have a vent opening then it is like taking air out of a milk carton with the lid on. If it is the cap on the radiator then you might have air in the hose or engine.

Posted on Feb 28, 2009

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