Jeep jerking while driving: help needed

[werc1]

My jeep wrangler 4.0 (1997 auto) is jerking while accelerating. It's at the shop at the moment... changed out the TPS and it's not that, cleaned the idle control module, not that...

Any ideas or people have similar problems, any solutions? Next step may be buying a new idle control module.

thanks in advance.

[yeti]

check fuel filter thingy.....fuel pump does it do it all the time or when cold .......

[werc1]

Does it all the time.

[yeti]

what else been done to it.......might be injecters......is it throwing any codes....can bring codes xj may chime in and remind me how

[jonossiksilvia]

checked spark plugs? - simple i know but was the fix for huge issues with my engine, so bad in fact that i thought no way in hell could plugs cause it,

[Coljag]

Hi there, I suggest you go here http://www.wranglerforum.com/ as there are some guys that know Jeep inside and out. As long as you realize they are mostly Yanks so... well you know. I have had heaps of help from some of them so give it a try.

[werc1]

may be the top oxygen sensor. Anyone know a place that has them, I see offroadspecialties has it for $188

[xj]

flick your key on and off 4 times, leave it in acc position after the 4th time. numbers will show up....upstream o2 sensor with come up as 21 in your odometer display. 55 will show once the system has been run through. If your battery has been disco'd recently, 12 will pop up first.

[rokhound]

check that there isn't a yeti stuck under it and you are constantly driving over him (sorry Wayne, it was too easy)

[werc1]

sourced one. hoping that's the issue.

[yeti]

check that there isn't a yeti stuck under it and you are constantly driving over him (sorry Wayne, it was too easy)

.....no comment....

have ya pulled the codes....do what xj posted and see what numbers come up.....

[werc1]

all sorted! was the Oxygen sensor after-all... thanks for your help everyone

[waza4x4toy]

For other readers i had a similar issue on a my XJ - engine cutting several times for a split second when warming up over the first 20mins of driving. Nothing frequent enough to solve or actually stop the engine or see check light code.

Checked USA forums and read suggestion of loom rubbing at back of inlet manifold on firewall.

Sure enough found part of the loom that drops down to tunnel rubbing on an odd bit of manifold casting right at the back of the engine. Conduit was worn through and wiring was just worn enough to see darkness of copper on two of the wires in the loom. Insulated this again and used more conduit as the loom cant be moved easily and haven't noticed the issue again. Might be be a common issue if your reading this and have same symptoms

[xj]

5L of petrol and a lighter works too... just sayn

[yeti]

5L of petrol and a lighter works too... just sayn

lol ya changed man............

[luckyme]

[quote="xj"]5L of petrol and a lighter works too... just sayn[/quote

[waza4x4toy]

Its a jeep so would take 4.99L of gas to move it down the driveway away from the house!

[Tarmac]

Jeep - jerking while driving: help needed.


Do you have an auto and steer with the left hand? must be a jeep thing

Sorry couldn't help myself

[luckyme]

5L of petrol and a lighter works too... just sayn