.
cars

Jump to content


Hello, Allpar Forums member or visitor! If you were an active member (more than two posts) or subscriber, you would not see this ad!

Register for a free account or Sign in (see top right of page for Facebook/Open ID login icons).


Photo

1996 Cherokee high idle/erratic idle


2 replies to this topic

#1 ramvan1986

ramvan1986
  • Active Member
  • 5 posts

Posted May 16, 2013 at 09:20 am

I have a 1996 Jeep Cherokee.  Manual transmission.  When shifting, idle speed hangs up [idle high] and this causes drivability problems.  Esp. when going from a stop light into first gear.  Have replaced IAC motor, TPS and have checked all vacuum connections.

 

Also have checked engine ground wire.  Problem seems to be intermittent but happens too much.

 

Any ideas out there on what I should check.  Thanks.

 

Ramvan 1986



#2 Bob Lincoln

Bob Lincoln

    "CHECK FAULT CODES"

  • Supporters (L2)
  • Others:Forum Leader
  • 25,317 posts

Posted May 16, 2013 at 09:49 am

Most common problem is a vacuum leak.  Check all tubing, both rigid and rubber, for cracks, and check for leaks around the throttle body.  Spray around the base of it with carb cleaner and see if the idle changes.  Make sure the bolts are tight.



#3 ImperialCrown

ImperialCrown
  • Supporters
  • Others:Forum Leader
  • 11,758 posts
Garage View Garage

Posted May 16, 2013 at 12:06 pm

Agree. These also didn't use a PCV valve, but more of a valve cover vacuum orifice for crankcase ventalation.
It is important that these are clear to draw crankcase fumes as they often plugged up or restricted.
The throttle body blade and bore must also be cleaned of carbon build-up periodically.


.
Allpar

Home · Cars · Engines · Repairs · People
Tool and Car Reviews · News

Please read the terms of use and privacy policy. We are not affiliated with Chrysler Group, makers of cars, minivans, trucks, and Mopar (TM) parts. We make no guarantees regarding validity or applicability of information, opinions, or advice. Posts may be edited and used in other parts of allpar.com and affiliated Mopar (Dodge, Chrysler, etc) car related sites. We have the right to remove or modify any message, and to ban or suspend any user without notice. Logos and site-specific information copyright © 2001-2013 Allpar LLC; Chrysler PR materials remain property of Chrysler Group.