What pressure should radiator cap be? After running normal temperature when stoped itblows coolant out the resivor overflow???

Asked by May 12, 2015 at 01:57 PM about the 2007 Pontiac Grand Prix GXP

Question type: Maintenance & Repair

1 Answer

3,875

Sounds like its operating normally to me. It's unlikely it has failed on a car that new. If in doubt though you could have your system pressure tested, or simply buy a new cap and change it. They're not all that expensive.

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