Question about 2001 Pontiac Grand Prix

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Vacuum canister location

Hey there, I was looking at someone's question about a 1991 pontiac grand prix's ac problem where it started blowing out of the defroster and the floor and very little out of the vents, my 2001 pontiac started doing the exact same thing, how can you tell if the vacuum canister is faulty, and where would it be located on a 2001 pontiac grand prix...I appreciate your help. Thanx, no ac in OKLAHOMA

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  • Anonymous Mar 22, 2014

    where is the canister


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We found that one of the vacuum hoses had been cut, so we bought a connector for $3.00 and coupled them together, and it worked like a charm.

Posted on Jul 07, 2008

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Oct 15, 2015 | 2000 Pontiac Grand Prix SE

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2006 Grand Prix Heater blows cold air only

The blend door is probably what is keeping the air from blowing across the heater core and picking up the heat. I hope your manual gives a description and procedure for it.

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Nov 12, 2013 | 2006 Pontiac Grand Prix

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On the silver canister under the hood..................Hope this helps.

Jul 04, 2012 | 1991 Pontiac Grand Prix

1 Answer

AC on 2000 Pontiac Grand Prix cools unevenly even though both controls are set at 60*

make sure the blower is blowing at a good ratio. If still not getting enough air, remove the ac filter located under the hood, between the firewall and under the plastic wiper blade cover. If this works, replace the filter

Jun 09, 2010 | 2000 Pontiac Grand Prix

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Ac blowing everywhere but out .

It may not be a relay problem but a vacuum line that has failed or was pulled off by one of the monkeys who broke two wires too. The vanes that control where the moving air goes (heated or cooled) are nearly always controlled by vacuum 'motors' and there is a vacuum reserve canister (it supplies vacuum under hard acceleration) that I have seen in GM cars with a very small, weak nipple that is easily broken off the canister.
Check all the vacuum lines you can identify: these are mostly small diameter black hoses about 5/16" to 1/2" and are routed to several destinations and start at the intake manifold. They are prone to cracking and only pushed onto nipples so can be easily pulled off by clumsy 'mechanics.'

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My heater on my 2002 pontiac grand prix blows hot then cold air my wife hit a huge pothole on sunday then after that this started doing this please help

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Jan 26, 2010 | 2002 Pontiac Grand Prix

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check the temp control switch in the dash

Jun 19, 2009 | 2002 Pontiac Grand Prix

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Where is the AC Low pressure valve on a 1999 Pontiac Grand Prix?

sometimes its behind the alternator real close to the firewall. Find the bigger of the two hoses and pipes the low side is always bigger. Also the cap is blue and the fitting for the charging can will only fit on the right valve.

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1 Answer

2004 Pontiac Grand Prix Evaporative Canister

you should be able to fix it look for a can near the fuel tank that has vacuum hoses coming out of it and you should be able to just buy the bad solenoid

Nov 03, 2008 | 2004 Pontiac Grand Prix

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