4.0 Stumbles

farmboy

farmboy

Well-Known Member
Joined
Apr 4, 2005
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Pulled the cobwebbs off my brothers cherokee after 6 months of sitting. It runs, but stumbles pretty badly at idle and when you increase the RPMs. Im thinkin sensor of some sort? Im no 4.0 expert.
 
Pull the throttle body and clean it, could very well be bullshit gummed up in the Idle Air Control Valve..
 
why you messing with it? surely Mac isn't gonna wheel it?
 
I need something to wheel when the buggy is down man! I thought about tearing down the buggy and beating on the cherokee for a while.
 
Someone needs to wheel that thing. It looks sad sitting behind the shop all the time.

Clean the throttle body and IACV. After that run some seafoam through it and hit up 485. Nothing some highway runs wont do to blow all the crap outta it.
 
HANO said:
It was the upstream 02 sensor btw. :D
Click to expand...
Now that's commitment. Answering tech questions in a 10 year old thread!
 
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