I think I already know the answer, but Why do I have no oil pressure? I puller the filler cap to see inside and am getting no oil out of the pushrods. Can I change the oil pump with the motor in the Jeep? Damn, I just remembered, I am going to have to pull my header since it runs under the oil pan. This sucks!!!! Today was the first day I drove it since I painted it. Anybody have a miracle fix or do I need to get to work.