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High RPM's In park

Tiny
KYLERCRAM02
  • MEMBER
  • 2004 CHEVROLET MALIBU
  • 3.5L
  • V6
  • 4WD
  • AUTOMATIC
  • 98,000 MILES
Cold started my car after a few days of sitting because I couldn't drive it. (Some type of problem with CV axle or something. Looking into it) anyways. It was jumping up to around 1,300 RPM's while in park. But as soon as I switched to drive or reverse it went back down to normal. Around 600.
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Friday, January 10th, 2020 AT 10:49 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

This could be caused by a dirty throttle body plate.

I would start by having the throttle body cleaned of all carbon build-up.

https://www.2carpros.com/articles/throttle-actuator-service

Are there any codes set?

I attached some information for you on cleaning the throttle plate and how the idle system is controlled.

Roy

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Friday, January 10th, 2020 AT 11:57 AM
Tiny
KYLERCRAM02
  • MEMBER
  • 2 POSTS
Throttle body would make reverse and drive higher in RPM too. Not just park though. Right?
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Saturday, January 11th, 2020 AT 9:00 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Correct. The ECM controls the operation of the motor on the throttle body.

Roy
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Sunday, January 12th, 2020 AT 1:05 AM

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