SPONSORED LINKS

The RPMs wont stay at idle in park or drive without my foot on the gas what would be the problem

Tiny
KEN44
  • MEMBER
  • 1998 JEEP GRAND CHEROKEE
  • 230,000 MILES
I have replaced the crank postion sensor, throttle postion and control valve
Wednesday, July 4th, 2012 AT 2:27 AM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Base idle needs to be set or dirty throttle body.

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, July 4th, 2012 AT 2:31 AM
Tiny
KEN44
  • MEMBER
  • 2 POSTS
Thank you for that info but how would I set the base idle
Was this
answer
helpful?
Yes
No
Wednesday, July 4th, 2012 AT 3:24 AM
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Idle isn't adjustable on that engine. Was the battery recently disconnected or run dead?
Was this
answer
helpful?
Yes
No
Wednesday, July 4th, 2012 AT 6:19 AM
Tiny
KEN44
  • MEMBER
  • 2 POSTS
Yes it was recenttly disconnected to charge the battery and it was dead
Was this
answer
helpful?
Yes
No
Wednesday, July 4th, 2012 AT 3:24 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
The Engine Computer lost its memory and has to relearn "minimum throttle" before it will know when it must be in control of idle speed. It also might not give you the normal "idle flare-up" to 1500 rpm when you start the engine. To meet the conditions for the relearn to take place, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the brake or gas pedals.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, July 4th, 2012 AT 6:11 PM

Please login or register to post a reply.

Related Engine Stall At Idle Content

Engine Stalls After Dead or New Battery
GUIDE
Engine Stalls After Dead or New Battery
So you installed a new battery and now the engine stalls? You have done nothing wrong because believe it or not this is normal. The engine computer has a learning cycle...
VIEW MORE

Sponsored links