1996 Grand Cherokee - Stalling Out!
Ok, what does this sound like to you?
If you've followed my few posts around here, my ZJ has about 293,000 miles right now, but for the most part, runs terrific. I've got no complaints. It has the 5.2L V8.
Although, it has this strange problem stalling out from idle.. It'll do it for some weeks or so, then be fine for months, then come back.
When it does idle, it is around 500-750 RPM, which is about where it has always been.
It seems that most of the time it stalls out is after I apply a good amount of engine rev, to something like 1,500 RPM, then completely let go of the gas. The engine RPMs drop below 500 RPM, and sometimes it'll kick itself back up to idle, and other times it'll stall out. So, as you can expect, getting around parking lots can take some time. I can always start back up, but because it stalls out, battery voltage drops from 14.4V to 9-12V.
When this has happened in the past, I have found that simply cleaning my battery terminals helps. The battery, alternator, fuel filter, spark plugs are all new (within 6-12 months old). I don't even know if this is electrical power related or fuel/engine related... I also regularly use Lucas Fuel Injector Cleaner.