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#1
07-27-2010, 12:56 AM
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02 Grand Prix Acceleration Problem
Often when accelerating the car will jerk a little, tach will jump up and down, engine feels like its running out of gas.
If I let go of the gas and push again then usually it works okay. Had a full infector cleaning, changed plugs & cables, replaced fuel filter. No lights ever come on, no codes when scanning. Any suggestions? 3.8L 150k 
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#2
07-27-2010, 02:19 PM
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Re: 02 Grand Prix Acceleration Problem
I suspect a bad Cat. 02 Grand Prixs along with alot of other 02 W-body's have a TSB on catylatic converters, and have an extended warranty of 10 years/120K. Unfortunatly it looks like you wouldnt be covered though.
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#3
07-28-2010, 10:20 AM
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Re: 02 Grand Prix Acceleration Problem
Even though you are over the 120k limit of the extended warranty, call a dealer with your VIN#, they may still be willing to cover it for you if in fact the converter is the issue.
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 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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