RPM is not stable

Tiny
SNOWMAN_ON
  • MEMBER
  • MERCEDES BENZ
I need some technical help regarding my car (mercedes E200 model 1996)
the problem is :the rpm is not stable "going up and down between 600 and 800";my mechanic tested the car using a pc computer and said there is no any faults with my car.
:oops:
Thursday, August 10th, 2006 AT 3:07 PM

2 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Check for vacuum leaks, especially the rubber intake boot from air cleaner to the throttle bore. Also remove the intake boot and clean out the throttle bore around the butterfly
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Thursday, November 16th, 2006 AT 10:43 AM
Tiny
SNOWMAN_ON
  • MEMBER
  • 2 POSTS
Thanks to all
the problem solved
the rpm was not stable because the ac of my car for "i dont know reason" was sending a rabid on/off signal to the computer which caused him to force the rpm up and down in simutlaneity.
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Thursday, November 30th, 2006 AT 8:19 AM

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