Jeep WH CRD idle issue - AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand


Go Back   AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand > JEEP GARAGE > XH Commander and WH Grand Cherokee


Portal Register Forums Trading Your Jeep New Garage Mark All Read

Post New Thread  Reply
 
Thread Tools Search this Thread
  #1  
Old 2 Weeks Ago
kolis  kolis is offline
I just registered
 
Join Date: Apr 2019
Posts: 1
What Jeep do I drive?: WH
Likes: 0
Liked 0 Times in 0 Posts
Default Jeep WH CRD idle issue

Hi there! Any ideas why the engine is up and down when idle? Thank you.

  #2  
Old 2 Weeks Ago
Clarky's Avatar
Clarky  Clarky is offline
Grand Obsession
 
Join Date: Apr 2012
Location: Wang NSW
Age: 51
Posts: 4,128
What Jeep do I drive?: WH
Likes: 397
Liked 957 Times in 633 Posts
Check out my Ride(s)
Default

When mine started doing this it eventually got worse (over a year or so) and started to stall, I ended up replacing my injectors

I had over 200,000km on it though, at 135,000 I would think it shouldn't be your problem. Try running a fuel injector cleaner in a tank or two.
__________________
FORUM MODERATOR QuadraDrive II Lovells 2"Lift +30 rims 255/75/17 BFG KO2's, Saguaro, Runva,
Sponsored Posts
  #3  
Old 2 Weeks Ago
liftmeup  liftmeup is offline
I just registered
 
Join Date: Apr 2019
Location: Melbourne
Posts: 4
What Jeep do I drive?: JK
Likes: 0
Liked 0 Times in 0 Posts
Default

I'd rather start with IAC valve diagnostic
  #4  
Old 2 Weeks Ago
Adrian D's Avatar
Adrian D  Adrian D is offline
Full Flexer
 
Join Date: Apr 2007
Location: Dracula's next door neighbor
Age: 30
Posts: 985
What Jeep do I drive?: WJ
Likes: 49
Liked 105 Times in 87 Posts
Default

It's a diesel, it doesn't have an IAC. Idle speed is controlled by injection quantity and timing.
__________________
Quote:
Originally Posted by Barefoot
Hey I wonder what happens if I plug this wire in therAAAAAGGGGGGHHHH............
Sponsored Posts
  #5  
Old 2 Weeks Ago
H2Micr0  H2Micr0 is offline
Established Member
 
Join Date: Jun 2017
Posts: 109
What Jeep do I drive?: WH
Likes: 31
Liked 23 Times in 15 Posts
Default

Does it sound like it's missing at cold idle, and then get better once it is hot?
  #6  
Old 2 Weeks Ago
liftmeup  liftmeup is offline
I just registered
 
Join Date: Apr 2019
Location: Melbourne
Posts: 4
What Jeep do I drive?: JK
Likes: 0
Liked 0 Times in 0 Posts
Default

Quote:
Originally Posted by Adrian D View Post
It's a diesel, it doesn't have an IAC. Idle speed is controlled by injection quantity and timing.
oh, really)
Sponsored Posts
  #7  
Old 1 Week Ago
robertodonnell's Avatar
robertodonnell  robertodonnell is offline
Full Flexer
 
Join Date: Apr 2015
Posts: 548
What Jeep do I drive?: WH
Likes: 3
Liked 94 Times in 70 Posts
Default

Have you plugged in a diagnostic tool and looked through the faults?

It could be something like a faulty accelerator pedal, sending random resistance signals to the PCM. Has the floor inside the cabin been wet?
Post New Thread  Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


» Advertisements_AS2


Powered by vBadvanced CMPS v3.2.3



All times are GMT +10. The time now is 01:14 AM.




AJOR does not vouch for or warrant the accuracy, completeness or usefulness of any message, and are not responsible for the contents of any message. The messages express the views of the author of the message, not necessarily the views of AJOR or any entity associated with AJOR, nor should any advice be substituted as technical advice replacing that of a mechanic. You agree, through your use of this service, that you will not use AJOR to post any material which is knowingly false and/or defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, threatening, invasive of a person's privacy, religious, political or otherwise violative of any law. You agree not to post any copyrighted material unless the copyright is owned by you or by AJOR. The owner, administrators and moderators of AJOR reserve the right to delete any message or members for any or no reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold harmless AJOR, the administrators, moderators, and their agents with respect to any claim based upon transmission of your message(s). The use of profile signatures to intentionally mislead or misdirect any member on this forum is not acceptable and may result in your account being suspended. Any trip that is organised through the AJOR forum is participated at your own risk. If you or your vehicle is damaged it is your responsibility, not that of the person that posted the thread, message or topic initiating the trip, nor the organisers of AJOR or moderators of any specific forum. This forum and associated website is the property of AJOR.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.

AJOR 2002 - 2019 AUSJEEPOFFROAD.COM. All corporate trademarked names and logos are property of their respective owners. Ausjeepoffroad is in no way associated with DaimlerChrysler Corporation or Fiat Jeep.
www.ausjeep.com www.ausjeep.com.au www.midlifemate.com ausjeepforum.com Jeep Wrangler JL Australia release
vB Ad Management by =RedTyger=