Question about 2006 Pontiac Grand Prix
It is quite possible that a pocket of air is now trapped in the heater core..... not exactly sure how you would get that air out manually because I don't know how hard it would be to disconnect a heater hose...... but you could try facing up a steep hill and revving the engine a few times..... it may push some or all of the air out. A vacuum pump suction applied at the fill hole may **** it out - withe the engine running at temperature. REMEMBER: never open a cooling system while the engine is hot! If the cap has been taken off BEFORE the engine is warmed you'll be fine..... but will still have to beware of the steam.....
Posted on Oct 13, 2010
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Posted on Jan 02, 2017
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