Recent content by LewisE

So, I took the truck to a Jeep garage here in the area. they have some guys that have been there since the 80's so I felt like they might have seen some stuff. They went through the same thinking as me and some of you guys but they had the tools to test the ideas. They suspected the crank sensor...

The coil is one part that I don't have a spare for so I'll keep checking the other suggestions to maybe eliminate them. I like the thought of checking voltage on the orange wire and looking for changes as I disconnect the other sensors powered from the same source. The combined knowledge here is...

I have a fuel pressure gauge installed on the fuel rail. It shows 34 when running. Is that ok? The pump and filter are new. The cat and O2 sensor are new and the coil is about a year old. It's an MSD coil which I would expect to be high quality but you never know. Would having a strobe timing...

Sorry if this seems long winded. I have a 1991 4.0, AW4, 2WD all stock with 65k miles on it. It’s in really good shape and has no rust…not even on the floors. Truck starts and runs fine for about 15 minutes and then starts dying and coming back like you would expect a failing crank position...