long crank

After putting up with a long crank time for a little under a year now, I finally started getting misfire codes. I suspected it was losing pressure at the rail because the injectors had 120k miles on them and the top of the intake manifold and around the injectors was FILTHY! The rough starts got...

I have 2001 4.0. Long crank issue. I check my fuel pressure at the fuel rail. Cranks up to 47 psi. As soon as I turn the engine off, it drops to almost 0. From what I have researched, pretty sure it is the one way check valve in the fuel pump assembly. Some say the check valve in on top of the...

Hey everybody, hope you are all doing well. The TJ overheated for the first time today while on the highway, pulling a couple ATVs, and it was about 110 degrees out. I know a pretty heavy load but it's done it going on 3 years now no problems. So I got the check gauges warning and saw the temp...