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RPM Spikes and Dips

Tiny
DANIEL417
  • MEMBER
  • 2003 MAZDA TRIBUTE
  • 3.0L
  • V6
  • FWD
  • AUTOMATIC
  • 205,000 MILES
Happy Holidays from Missouri! Driving to my parent's place this week I noticed a problem. When I start my car the RPMs rev up to 2000 - 2500 and then quickly drop to around 500. It continues to spike and dip 6-8 times before eventually leveling out to around 1000 RPMs where it should be. This problem does not persist while driving and applying acceleration, but does when I release my foot from the gas while slowing down or coming to a stop. Any help would be greatly appreciated, god bless.
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Saturday, December 26th, 2015 AT 10:35 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
There is a valve called the idle air control valve. It controls the idle and is a common failure. It is on top of the throttle body and is held by 2 8mm bolts and an electrical connector. You can get it at any parts store.

Roy
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Saturday, December 26th, 2015 AT 11:28 AM

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