NAXJA Forums -::- North American XJ Association  

Go Back   NAXJA Forums -::- North American XJ Association > NAXJA Unibody Jeep Technical Forums > Jeep Cherokee XJ (1984 - 2001) > OEM Tech Discussion
HOME Member FAQ Sponsor Info Rules Bylaws E-Mail

OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs.

Reply
 
Thread Tools Display Modes
  #1  
Old February 8th, 2017, 02:09
outlander's Avatar
outlander outlander is offline
NAXJA Forum User
 
Join Date: Oct 2004
Location: Columbus,Ohio
Posts: 3,796
Cruise control wont maintain set speed

97 GC laredo 4.0
When i set cruise it very slowly creeps up in speed and next thing i know im doing 5mph faster than set speed.....and will keep going if i let it eventually i have to hit the cancel or decel button
Where should i start looking?
Reply With Quote
  #2  
Old February 8th, 2017, 07:18
CorneliusRox's Avatar
CorneliusRox CorneliusRox is offline
NAXJA Forum User
 
Join Date: Dec 2013
Location: North of MSP
Posts: 53
Re: Cruise control wont maintain set speed

That makes me think that the PCM thinks you have less vacuum than you actually have. Possibly there's a MAP sensor and there's a leak in it's line. That'd likely be a small enough orifice to only affect the specific sensor. Then the PCM would be trying to pull more on the cruise diaphragm than what's needed.

I could be wrong. Just a thought!
Reply With Quote
  #3  
Old February 8th, 2017, 15:01
outlander's Avatar
outlander outlander is offline
NAXJA Forum User
 
Join Date: Oct 2004
Location: Columbus,Ohio
Posts: 3,796
Re: Cruise control wont maintain set speed

Thought about that....ill dig out my mityvac gauge and see what i can find.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
97 XJ Cruise Control keeps increasing in speed? Patriotsix OEM Tech Discussion 9 December 25th, 2016 22:05
cruise control wont set, and tps code 99blacksport OEM Tech Discussion 4 October 5th, 2011 07:23
1992 cruise control wont engage jeeptorino68 OEM Tech Discussion 21 December 3rd, 2010 19:23
Cruise Control not holding speed bill.sts72 OEM Tech Discussion 13 September 10th, 2010 21:33
91-94 XJ 5-speed w/ cruise control? Gjeep OEM Tech Discussion 2 March 29th, 2010 11:01


All times are GMT -7. The time now is 20:55.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
NAXJA and NAXJA logo's Copyright NAXJA. All content/images Copyright NAXJA 1999-2014