Join Date: Feb 2008
The first thing you DONT want to do is start swapping out components. That practice gets very expensive. ( dont ask how we know !).
As already stated, methodically go down Zeejay's list and pay particular attention to the throttle body/IAC and the grounding points/ battery cables. A bad battery can do it, a bad alternator can do it, as can a bad ground ( fender well, oil dipstick area, below coil too).
Since it seems to be limited to stalling while at idle or low speeds, dellis has you on the right track with the IAC area. But that could change overnight. It might start bucking at highway speeds at some point.
Dont skip over things on the list and dont just look at the grounding connections, thinking they are clean and tight. Remove the negative battery cable....then start removing and cleaning the 3 grounding points.
I would only add this:
Open the distributor cap, spray electrical contact cleaner in the top of it and wipe it out. Then remove the plate below it, ( cam pickup sensor), spray the sensor area and wipe it, then spray and wipe down the rotating metal plate below the cam sensor plate. Make sure your coil wire, as it leaves the top of the distr. cap doesnt cross any plug wires.
We've all had to deal with issue at least once....and it comes back in a different area from time to time. Jeeps hate dirty power connections, they hate bad batteries, but they love mud !
2007 5.7 Hemi, Ltd. QD II -
1997 ZJ, 4,0 select trac, Up country, track lok.