Car shakes

2003 PONTIAC GRAND PRIX
170,000 MILES • 3.8L • V6 • FWD • AUTOMATIC
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SOLOMON84
  • MEMBER
  • 2 POSTS
I have a 2003 Pontiac Grand Prix gt, when I accelerate it shakes real bad, but idles fine, and when I let off the gas it rides smooth, any help?
Feb 14, 2016 at 3:39 PM
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HMAC300
  • CAR REPAIR CONTRIBUTOR
  • 48,601 POSTS
scan for codes and check fuel pressure with a gauge auto parts rent it.
Feb 14, 2016 at 3:44 PM
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SOLOMON84
  • MEMBER
  • 2 POSTS
Already scanned for codes nothing popped up.
Feb 14, 2016 at 3:54 PM
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HMAC300
  • CAR REPAIR CONTRIBUTOR
  • 48,601 POSTS
check fuel pressure and for a vacuum leak as well as holes in duct work from air filter to throttle body
Feb 14, 2016 at 4:22 PM
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