Car has been driving wonderful

Tiny
HOLYBUCKEYE1965
  • 2003 CADILLAC DTS
  • 127,000 MILES

Car has been driving wonderful. I came home from driving my usual 70 mile round trip. Got up in the morning and when I started the car the engine shakes very very badly only when idleing. If I rev the engine it stops until it gets back to idleing then the engine is shaking like crazy. Any idea's?

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Tuesday, October 16th, 2012 AT 7:32 PM

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Tiny
KHLOW2008
  • EXPERT
  • 42,008 POSTS

Either the idling speed is too low or there is a misfiring causing the problem. If the MIL is indicating, retrieve the trouble codes and let us know what they are.

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Tuesday, October 16th, 2012 AT 8:32 PM
Tiny
SATURNTECH9
  • EXPERT
  • 30,742 POSTS

Any codes?Is the engine actually missfiring or is there just vibration?

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Tuesday, October 16th, 2012 AT 8:33 PM

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