Forum Index
Jeep Horizons HomeLinksJeep Horizons Tech Write-upsJeep newsLand useContact

 Watched TopicsWatched Topics   FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Any Suggestions people? S/O Cherokee issues....


 
Post new topic   Reply to topic     Forum Index -> Cherokee Forum
View previous topic :: View next topic  
Author Message
doc.logix
Member


Joined: 21 Nov 2007

PostPosted: Wed Nov 21, 2007 1:57 pm    Post subject: Any Suggestions people? S/O Cherokee issues.... Reply with quote

My jeep: 92 Cherokee Limited, 4.0L I-6, High Mileage as in 247,000...

I recently acquired it, but I am a firm believer that jeeps just don't die, in most cases you have to work at it to kill them LOL..

Problem Idle and stalling.. yes I know I have been checking out the posts on IAC, TPS, Etc... Pulled IAC and cleaned was covered with carbon, cleaned the TB..

But when cold it starts decently, runs decently, a few misses here and there but nothing I would worry about. Drive it long enough to get it up to temp, or even to stop for a few minutes after getting it close to temp.. it becomes extremely difficult to start when stopped, or if driving, it will idle down for a second to a normal idle then abruptly drop to around 500 missing and sputtering badly followed by a stall. After it stalls is is almost impossible to start until it cools back down well. NOw I also found that if I pop the hood and bleed off the fuel rail, it will start ok while hot as well. in doing this I noticed large amounts of air coming out during bleeding.. vapor lock? Fuel lines are not in abnormal positions.. and if this is the case, why does it seem to run ok if you keep RPM's over say 2000? Also in many ways it sounds as though it is running quite rich when the missing and sputtering starts, but again if I can get the RPM's up, it smooths out and runs fine, just won't idle without dying..

Any assistance would be appreciated.. Thnx!

Doc.
Back to top
View user's profile Send private message
Brad The Best
Member


Joined: 14 Jan 2007
Location: Kamloops B.C Canada

PostPosted: Wed Nov 21, 2007 6:27 pm    Post subject: Reply with quote

a fuel pump on its way out spits a lot of air into the lines , recently had this problem and ended up with a 3 am tow .

otherwise i would look at fuel filter temp sensor or o2 .

you have checked basics like spark plugs ?
Back to top
View user's profile Send private message Send e-mail MSN Messenger
doc.logix
Member


Joined: 21 Nov 2007

PostPosted: Wed Nov 21, 2007 6:49 pm    Post subject: Fuel pump.. Reply with quote

I was beginning to wonder about that, although still confuses me as to why it would run ok at high rpm but not at idle. The only when hot thing makes sense as it is more like after a period of time..

As far as plugs yes new plugs, properly gapped, wires cap and rotor.

If is the pump hopefully will hold out for another paycheck LOL..
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic     Forum Index -> Cherokee Forum All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Visit links4jeeps.com for write-ups, forums and clubs




Jeep®, Wrangler, Cherokee, Liberty and Grand Cherokee are copyrighted and trademarked to Chrysler LLC.
jeephorizons.com is not in any way associated with or endorsed by the Chrysler LLC.
All other content is copyright Jeep Horizons 2004-2008.
Tech write-ups Links Discussion board Land use News Site Map Terms of Use

Powered by phpBB © 2001, 2005 phpBB Group