i know the crank bearings cause the oil pressure to drop but i was wondering what else could it be?

 

Bad guage,oil pump,cam bearings. What is it running at?

 

as i start it it runs at half and as it warms up it drops just below a quarter. sometimes it reads none when im just sitting there

 

One of the best investments I made was a good quality guage,They are cheap. The guage gives you piece of mind.
If your oil pressure is that low it will start to miss because the lifters will stop working followed by a loud lower end knock if ran to long.

 

Do you have oil in it haha

 

yes there is oil in it. first thing i checked. could my sending unit be bad

 

hey marc i have a 2000 that does the same thing. ive replaced the sending unit and tried thicker oil but still have the same issue. ive done a lot of research because i just turned 100k and figured it was way to eary for bearing to go bad. anyway from what ive read the factory gagues are junk. i hooked up a mechanical gague to mine and it was just fine. i bet yours is too.

 

mine has 140k so maybe i will try that. i hope thats it cause i dont want to mess with the bearings

 

please let us know if that works. my oil gauge is showing a low reading as well.

check my thread for any updates as to what the cause is.

https://www.cherokeeforum.com/f2/low...light=pressure