2003 Pontiac Grand Prix Driving

2003 PONTIAC GRAND PRIX
233,600 MILES • 3.1L • 6 CYL • RWD • AUTOMATIC
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FINNTHEBOY
  • MEMBER
  • 1 POST
My 2003 Pontiac Grand Prix has been running funny lately it seems to accelerate slowly also I accidentally hit a large pothole recently I've noticed it drives harder for some reason
Apr 11, 2014 at 3:44 PM
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KTECH
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 57 POSTS
Well your starting to get a lot of miles on your car so i would try a couple things. One you have 200+K miles are carbon build up inside your engine so i would first do a 3 part fuel system treatment cleaning of (Injectors, intake and throttle body) all that buildup if costing you fuel economy and hp. Change your air filter if its dirty more air is more power. check your transmission fluid while its running, If trans fluid is too high or low you can get poor performance out of it. if you want your car to run another 200K miles i would also change the antifreeze and your transmission fluid every 3 years
Apr 11, 2014 at 7:37 PM
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