Calgary Jeep Association

« previous next »
Pages: [1]   Go Down

Author Topic: 99 xj rough Idle?  (Read 1784 times)

0 Members and 1 Guest are viewing this topic.

Offline che

  • Winch Wench
  • Posts: 26
99 xj rough Idle?
« on: September 03, 2012, 08:14:29 PM »
Hello, This is a shot in the dark but I figure I would ask the pro's ;)
I just bought the xj and it has a rough idle. all i know about it is that it last for maybe 30 seconds on every start up. seems like it wants to stall and then will regain itself. if i rev it up then it will go away. I know i'm not giving you much to work with but I'm just getting into it....
Anything will help
Thanks
Logged
2010 wrangler Sahara
2012 mustang 5.0
99 Cherokee xj

Offline BUKI

  • Talks waaay too much!
  • Posts: 1197
  • Project Fugly
Re: 99 xj rough Idle?
« Reply #1 on: September 03, 2012, 10:04:50 PM »
Codes?  sounds like IAC.  I would take t body apart and clean it as well as IAC portion put it back together and see if it helps
Logged

Offline che

  • Winch Wench
  • Posts: 26
Re: 99 xj rough Idle?
« Reply #2 on: September 04, 2012, 03:45:26 AM »
It's not throwing any codes.... But he could have pulled the light possibly. I'm sorry but what's the IAC?
Logged
2010 wrangler Sahara
2012 mustang 5.0
99 Cherokee xj

Offline BUKI

  • Talks waaay too much!
  • Posts: 1197
  • Project Fugly
Re: 99 xj rough Idle?
« Reply #3 on: September 04, 2012, 09:03:08 PM »
Idle Air Control.  Its a stepper motor that pushes in and out to let more air in for idle.  (Fast idle)
Logged

Offline TL-Iguana

  • Talks waaay too much!
  • Posts: 1116
  • XJ - The Official TJ Rescue Vehicle
Re: 99 xj rough Idle?
« Reply #4 on: September 04, 2012, 10:19:37 PM »
Quote from: BUKI on September 04, 2012, 09:03:08 PM
Idle Air Control. 

X2.

Ended up replacing mine on my 2001 and it solved my issues...
Logged
I did a Google search for "hot trannies" but nothing came up about oil coolers  :o

Worrying too much about mpg with a Jeep is similar to worrying about your sister's virginity. An ok thing to be concerned about but...

'01 XJ on 35s, '11 Jk DD

Offline birdo

  • Baby Wheeler
  • Posts: 86
  • 99 TJ
Re: 99 xj rough Idle?
« Reply #5 on: September 05, 2012, 01:43:27 PM »
Or you could try taking it off the throttle body and cleaning it. Easiest with the throttle body right off. Watch them little Torx screws. They can be tough to remove and easily stripped. Carb cleaner is your friend.
Logged
John Bird
Okotoks Alberta
1999 Jeep TJ Sahara
Desert Sand
Hercules 31s on Ion Alloy Rims
Rough Country Suspension Lift Kit
Custom Truck Bed Liner Paint Job (heh, heh)
Some Cheapo Clarion Stereo
Heated Seats, Air-Con, Cruise
230,000 kms
Pages: [1]   Go Up
« previous next »