2000 CADILLAC STS CAR TALK

  • Tiny
  • Gilmer
  • 2000 Cadillac STS

Engine Performance problem
2000 Cadillac STS V8 Front Wheel Drive Automatic 144114 miles

once i've drivin my car around for awhile in its get real hot I put the car in park and it jerks real hard and my rpms go way up

Wednesday, February 24th, 2010 AT 2:18 PM

1 Answer

  • Tiny
  • factoryjack
  • Expert
  • 4,263 posts

Way up, as in around 1500 rpm? Check for a vacuum leak in the intake plenum boot. This is often not visible, it occurs around the bottom side of the boot, it splits. You can also get a check engine light, and lean codes for both banks P0171, and P0174.

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Wednesday, February 24th, 2010 AT 11:38 PM

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