Quite new to the forum and have been reading some very interesting things about the carb problems people are having. I just bought a 1990 Wrangler with the 4.2. I have a similar problem but am going to show my ignorance here....
I bought it a month ago because I've always wanted a jeep. The seller said it needed a new intake manifold gasket and that's why it wanted to stall at each stop light. I took it to a shop and had the gasket replaced.
Still wants to stall. Friend who is mechanically inclined said it may be the EGR valve. So we removed it and cleaned it so it definitely moved smoothly compared to the short stroke it had when we took it off.
Still wants to stall. So a mechanic friend of mine said it's the carb because fuel was just dripping out of the pins. So he rebuilt the carb for me....I was with him when we took it completely apart and cleaned it thoroughly before putting all new gaskets e.t.c. in it (actually bought a rebuild kit).
It's still doing the exact same thing! Here's when it stalls. When ever there is forward inertia on the motor...so coming to stop quickly, slowing down quickly to take a corner, or even stopped on a downward sloping hill. If I sit on an upwards sloping hill, it runs fine (actually idles really high because we have the idle turned up)....but when the fuel? is being pushed forwards from slowing down quickly, or sitting on a downward slope, I have to do the 3 pedal shuffle.
Do I need a new carb? Could it be the fuel pump or filter? I am NOT a mechanic, but would love for my jeep to be driveable.
Cheers, and thanks in advance for any advice / help you can offer.