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96_z71
09-17-2011, 04:07 PM
Brothers 96 XJ 4.0 stalls every now and then. He says the idle starts to drop and sputter a bit before it finally stalls. Only happens sometimes, but I'm thinkin about just cleanin out the Idle air control? I'll take a look around for vacuum leaks as well. Just gave er a full tuneup a few months back, but its been doin it before as well. Any other pointers you jeep guys got would be great, thanks!

Happypants
09-17-2011, 08:12 PM
Does it do it when it's hot? Mine used to do that, turned out to be the CPS, Either that or IAC or TPS, there cheap to replace so I would replace em anyway,

96_z71
09-19-2011, 08:27 PM
Not too sure, I think when its hot. But ya I'll check into those as well, thanks!

bcmaxx
09-20-2011, 09:46 AM
How is it to restart after the stall?

96_z71
09-27-2011, 06:09 PM
Well I picked it up on saturday, and as soon as I started driving it, there was a definite stumble/hesitation, braught er home and pulled off the throttle body. Cleaned the crap out of the IAC and the mass air flow (I think, had a little black 90 degree hose going into the throttle body), and now it runs like new.