Question about 2001 Pontiac Grand Prix
Thanks for responding. This is a new fuel pump installed by me. The problem didnt occur untill now about two months later. Think it is still the computer? My mullers a very hot after only a minute of running the car. Spit on them and they sizzle. Any suggestions on what to do would be welcome . Thank Robert
Hotter than uasual mufflers tell me you could have a couple different things going on, running super rich or monster knock that will force the spark timing to be delayed (retarded) way late into the power stroke. I'll need more info.
Start with the basics. You have a 2001 GP, is it an SE, GT or GTP? Are you in Park or Drive when this happens? You say it starts and idles fine, does this problem show up before or after the engine warms up-or does that make a difference? Do the mufflers super-heat before you try the 4 grand run or after? Try this at night, pop the hood and look at the exhaust manifold, is it glowing? Now drop to the ground, right behind the front wheels in the center between them, is your catalytic converter glowing? What octane gas are you using? Did you upgrade your FP to something like a walbro or is it stock? Have you replaced your fuel filter? Any performance upgrades?
Posted on Aug 06, 2008
Tips for a great answer:
Oct 02, 2015 | 2006 Pontiac Grand Prix
Aug 31, 2012 | 1999 Pontiac Grand Prix
Inside The Fuel Tank. If Yours Tests Bad, You Will Need To Drop The Tank And Replace It. Be Sure To Have Someone Test To Make Sure Yours Is Bad, This Is A Difficult Job And Expensive.
Feb 21, 2011 | 1995 Pontiac Grand Prix
Jun 24, 2010 | 1992 Pontiac Grand Prix
May 08, 2010 | 1999 Pontiac Grand Prix
Jan 31, 2010 | 1992 Pontiac Grand Prix
Jul 25, 2009 | 1999 Pontiac Grand Prix
Feb 05, 2009 | 2002 Pontiac Grand Prix
Nov 19, 2008 | 2001 Pontiac Grand Am SE
Sep 15, 2008 | 2004 Pontiac Grand Prix
89 people viewed this question
Usually answered in minutes!