Rough Idle - ONLY when started and engine is warm - WTF??

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Oct 23, 2009 | 04:37 AM

#16

da92gs87

Seasoned Member

Joined: Nov 2008

Posts: 343

Likes: 0

From: Warner Robins, GA

i also have this problem in my 95 (4.0) 5-speed... no matter if im at idle or driving it will hesitate... while in idle it will drop down to 300-400 rpm and almost die then the rpms will shoot up to around 1500ish on its own... while im driving no matter what speed/rpm/gear im in it will do it unless i push in the clutch & shift then it will be fine... if i just try stepping on the gas harder it will bog even more... it has new plugs, wires, dizzy cap, & fuel pump/filter

Nov 24, 2009 | 12:52 AM

#17

beach dude

Junior Member

Joined: Nov 2009

Posts: 54

Likes: 0

From: nj

Year: 2000

Model: Cherokee

Engine: I6 4.0L

where do you get these heat sheilds at? ive been to several parts stores and also the jeep dealership and all the guys have looked at me like ive got 5 heads...

Aug 12, 2016 | 03:16 PM

#18

slimsxj

Newbie

Joined: Oct 2015

Posts: 6

Likes: 0

From: Aurora

Year: 1996

Model: Cherokee

Engine: straight 6

Hi, are you still having the rough idle issue? I am dealing with the same thing and was hoping maybe you could shed some light? Mine does it worse when I put it in gear. I've tried everything.

Thanks,
Rick

Aug 12, 2016 | 08:41 PM

#19

Waynerd

CF Veteran

Joined: Jan 2015

Posts: 1,469

Likes: 26

From: North canaan Connecticut

Year: 01, 99, 98, 98,98

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by fantic238

Don't mind for the pics.
That's your hot air conveyor for the winter cold starts. What is missing is one of those crappy carton flexible tubes that connects it to the intake by-pass on your air filter box, just behind the left headlight.
Typical "disappearance" on the older ckees...

Ummm. I don't think an 01 has that. And to slim, try starting a new thread. Explain your symtoms exactly. State year of vehicle and motor/trans.