2000 Cadillac STS Car Talk

Tiny
GILMER
  • MEMBER
  • 2000 CADILLAC STS
  • V8
  • FWD
  • AUTOMATIC
  • 144,114 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
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Wednesday, February 24th, 2010 AT 2:18 PM

1 Reply

Tiny
FACTORYJACK
  • EXPERT
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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