AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand

AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand (https://www.ausjeepoffroad.com/forum/index.php)
-   XJ / MJ Cherokee (https://www.ausjeepoffroad.com/forum/forumdisplay.php?f=123)
-   -   Help needed! Stranded XJ with horrible idle/miss (https://www.ausjeepoffroad.com/forum/showthread.php?t=147161)

Madballs 11-01-2017 07:12 PM

Help needed! Stranded XJ with horrible idle/miss
 

Hey guys,
I have a 2001 XJ with the 4.0 petrol and as I was driving felt a big miss. The car now struggles to get up to speed but will every now and then clean up if I give it a boot. It struggles to hold idle if in gear but as soon as the load is off it in park or neutral it will idle OK again.
Driving at a constant speed it hard too with it surging or missing really badly.

Any help is greatly appreciated as I am on holidays with the family and am a fair distance from home with the jeep as our only means of transportation!

bruggz351 11-01-2017 07:41 PM

Blocked fuel filter, man.

Sent from my HTC_0PJA10 using Tapatalk

rustynuts 11-01-2017 07:55 PM

It could also be a vacume leak. Have a quick check under the bonnet for a hose that has come off. Check the PCV valve and hose that runs from the top rear of the rocker cover to the intake manifold.
Symptoms of a vac leak can be an OK idle with no load because the IAC valve may compensate. Missing under light load and ok running when booted.

Madballs 11-01-2017 08:07 PM

Thanks guys, I really appreciate your replys and will check both in the morning.

werd 11-01-2017 11:39 PM

Check to see if it has thrown any error codes.

Madballs 12-01-2017 08:56 AM

Thanks for the replies guys, have checked codes and is not throwing any at this stage.
I feel like I'm down to the usual culprits being the CPS, CAS, upstream O2 sensor or fuel filter. Being a 2001 it's going to be hard to get to the fuel filter where I am on the goldy.
I have tried to start it again this morning and it will only just start occasionally and idles horribly now if at all. Anyone know where I can get a CPS and CAS over the counter on the gold Coast??

rustynuts 12-01-2017 09:18 AM

Try resetting the computer. If it runs better, it is not your O2 sensor.
A coil pack could be cactus. I would have a workshop check your fuel pressure and do a live data scan before throwing parts at it.


All times are GMT +10. The time now is 02:47 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

AJOR © 2002 - 2024 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 www.r9kustoms.com

vB Ad Management by =RedTyger=