Question about 2008 Pontiac Grand Prix

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Have a 2008 Pontiac Grand Prix with 223000 miles on it. About 500 miles ago I changed the Camshaft, all 12 roller lifters and the Timing chain. Since then, the car runs great, but at times it will not start or if it does start it feels like it sputters and runs very rough and dies. I can disconnect the battery for a few minutes and it seems to correct it for a few days and then comes back. The check engine light never comes on. Any ideas?

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  • Pontiac Master
  • 660 Answers

Probably an intermittent problem with the crank sensor or wiring from it to the ECM.

Posted on Jun 14, 2017

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Posted on Jan 02, 2017

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SOURCE: 1999 pontiac grand prix . will not run

If wiggling the wires cured the code, then one of the wires is broken inside the insulation. Pull on each wire one at a time. look for the colored insulation to stretch, this will be the broken wire. For the other car that wont rev up, this is a common when the catalytic concverter is plugged up. This will also cause MAF codes, and in turn, TRAC OFF light.
See http://www.greatautohelp.com

Posted on Oct 17, 2008

  • 83 Answers

SOURCE: Changed thermostat, grand prix gt, check engine light still on?!?

check evap vent solenoid alot stick on these cars.

Posted on Jan 13, 2009

  • 1779 Answers

SOURCE: check engine light came on along with check gas cap

Did u have engine codes scanned? If not, have it done, as it may indicate the problem. Let me know. (most parts stores will scan for codes free) .

Posted on Mar 21, 2009

  • 92 Answers

SOURCE: 1999 Pontiac Grand Prix intermittent problem runs rough

i have had two of these problems both on grand prix's , both turned out to be a mass air flow meter. but nethier set a code for the sensor.

Posted on Mar 29, 2009

  • 36 Answers

SOURCE: 2000 pontiac grand prix starts and dies

check the pcv valve and or the mass air flow

Posted on Mar 31, 2009

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Where is timing belt located on my 2002 Pontiac Grand Am


nowhere. it has a timing chain that should last forever as long as you keep your oil in good shape. doesn't matter if you have a 4 cylinder or a v6, they both use chains.

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I've often heard that some Pontiac engines (vintage 1980-2002) used a plastic or quiet type timing chain and sprockets. Owners of these vehicles I have talked to said that this kept them from buying...


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No one has ever used plastic gears and chains. Some of the older big block models used timing gears with nylon teeth. This is true for all manufacturers and I believe ford still uses them in some engines. The disavantage to the nylon teeth was they would wear out somewhat faster, usually in the 80K-100K range. The pontiac V6 3800 engine has had steel toothed gears from 1986 to present and considered the most reliable V6 model ever built. While it is rare to actually break a timing chain under normal driving conditions, it does happen in race applications. However, when teeth and chains wear out, rough running and high fuel consumption due to poor mechanical time is the result. 350 GM engines were recommended to replace timing sets at 80K miles for optimum performance and were notorious for chewing off teeth. The aftermarket high performance replacement sets were made of cast iron or tempered steel. Double roller chain types, while noisier, lasted longer with fewer timing relasted issues. I had a 1979 firebird for 17 years with 200K+ miles on it and it still ran like a champ, so like anything else, proper maintenance and good driving habits have a huge affect on engine component life....Mike

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Do 2002 pontiac grand am se has timing belt or timing chain and at what miles it has to be changed


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The car has a timing belt - [ rubber] and should be changed at 100,000 miles - each 100,000 miles = new belt.
To save problems many people do this at about 90,000 miles and it is also best to change the water pump while you're in there.

Best of it.
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My car has 144,500 miles n i dont think the timing chain has been checked would it be wise to get it looked at when i get it inspected next yr


The timing chain usually lasts a long time, and if you don't hear a lot of rattling, it's probably ok.

Timinig belts(replace every 80,000 mi.) seem to wear out faster than timing chains which when properly maintained through oil changes can last for the life of the car's engine.

I expect to get about 200,000 mi. on my 1990 Cadillac Deville which has a timing chain in it, and has just gotten to 192,000 mi. recently.

.

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I need a manual or video on how to change a timing belt on a Pontiac Grand Prix 1999


This vehicle does not have a timing belt it has a timing chain.You can go to the library and get a book or if you want to buy one you can usually get one at any part stores for about 15 bucks.Hope this helps.Good luck.

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How do tighten the timing belt on a 2005 pontiac grand prix ?


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@ what miles change autotransmision fluid & filter-HOW IF NEEDED?


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