Question about 2005 Pontiac Grand Prix

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I replaced the catalytic converter on my 05 Grand Prix and drove over 200 miles and still has two incompletes on my scan tool

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You may have to use the scan tool to reset the cpu. to remove the fault codes. Also ensure that all faults have been addressed.

Posted on May 11, 2013


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Posted on Jan 02, 2017

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SOURCE: how do you replace the blower motor in a 05

First link

Posted on Feb 19, 2009

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SOURCE: Pontiac 200 Grand Am 3.4L V6 3000+ RPM

have you checked the engine for vacume leaks or advanced timing or even sticking accelorator cable or linkage? these are always a good place to start for excess acceleration

Posted on Apr 30, 2009

  • 1902 Answers

SOURCE: converter recall 2002
You can try this website they have all the info on all the recalls within the last 8 years. Anything after 8 years the recall is voided Hope this works for you

Posted on May 21, 2009

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SOURCE: serpentine belt replacement

You will only need to locate the fan belt diagram to replace it on correctly and a 1/2 breaker bar or ratchet to back off the tension er while replacing belts check the tension-er bearing if it feels ruff when you turn it replace it. Check water pump also to see if it turns smooth same with the alt.

Posted on Jul 05, 2009

  • 1 Answer

SOURCE: '98 grand prix GTP belt tensioner replacement

I didnt have to remove my alternator, I just used a 15 mm wrench to remove the left-hand threaded bolt holding the tensioner on. hope this helps

Posted on Jul 21, 2009

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1 Answer

Evaporative monitor not working after cat converter replacement and driven 200 miles or more.

If you went with a cheap aftermarket cat you wasted your money it problem doesn't have enough back pressure

Jan 30, 2016 | 2005 Pontiac Grand Prix

1 Answer

Problem with 2005 Pontiac Grand Prix I replaced the catalytic converter on my 05 Grand Prix and drove over 200 miles and still has two incompletes on my scan tool how long is it going to take to complete...

It should have already a few times. Clear the codes with your scanner, the computer will save past faults in the memory, but it doesn't mean the problem is still there.

May 11, 2013 | 2005 Pontiac Grand Prix

1 Answer

2004 Grand Prix....Flashing check engine light but when stops flashing when I come to a stop.

When a GM engine light flashes it means your car is misfiring. This is a symptom of another problem. It could be loose spark plugs, a stopped up catalytic converter, etc. I would get it checked ASAP. If you wait too long you could damage your car. If your catalytic converter is stopped up your car is getting very hot EGT's (exhaust gas temps) and can mess up your motor. If it stops when you stop I would lean toward something simple though, but if you go to Advance Auto Parts, or Auto Zone they will scan the car for free. Let me know if you need anything else. Thanks.

Mar 16, 2011 | 2004 Pontiac Grand Prix

1 Answer

My Grand Prix GXP is using a quart of oil every 1500 miles. It does not smoke or leak! What could be the problem?

If you're vehicle has high mileage you may be loosing oil through you're valve guides. you may not notice this as the catalytic converter would burn off the oil. Or check you're radiator if oil in water head gasket is ready for replacement.

Feb 14, 2011 | 2007 Pontiac Grand Prix GXP Sedan

3 Answers

Driving with a bad O2 sensor

its okay but u will get bad gas milage

Apr 04, 2010 | 2002 Pontiac Grand Prix

1 Answer

2003 Grand Prix service engine light on even after new catalytic

I wouldn't have gotten a cat. If the o2s are all replaced, then it could be an EGR valve

Oct 06, 2009 | 2003 Pontiac Grand Prix

2 Answers

2002 grand prix

I just had the same problem. Check the catalytic converter. It took me forever to get over 30 or 40. Drove everyone in the road nuts. They initially thought it was the transmission. Not so, clogged catalytic converter. I got it tuned up and the engine runs fine. Wish I could sasy that about everything else on this lemon!

Aug 16, 2008 | 2002 Pontiac Grand Prix

2 Answers


Possible clogged catalytic converter. Is the check engine light on?

Aug 16, 2008 | 2002 Pontiac Grand Prix

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