hey guys im new to jeep cherokees, i just bought a 95 zj larado with a 4.0.
my issue is when i start it, the oil pressure gauge goes off the gauge, and it never goes back down any. this cant be normal, i did a search, im thinking the oil pressure switch??? im goin to do an oil change later today and a tune up as well to get rid of my miss, and bad idle too.

 

Welcome to the Cherokee Forum!

Almost assuredly the oil pressure sending unit (also known as oil pressure switch). They ae a very common failure.

I recommend purchasing this directly from Jeep for best reliability/accuracy/mating with your factory gauge. Worth the extra $20.

 

I was haveing the same problem with mine awhile back,turned out to be the conection going to the sending unit,the wire was broken inside the connector/rubber boot.Relpaceing the end fixed the problem.

 

thanks for the tips, ill go check em out in a few!!