So I as per the dipstick I have plenty of oil....yet it always shows little pressure on the guages, and this weekend when I took it out I was in a certian angle and it read 0 oil pressure. So is this a bad pump? and where can I find a replacement pump? part number and or write-up would be greatly appreciated.

Rob

Rob:

More details pls: year, mileage, engine, etc. ?

I've recently noticed that my '98 TJ 4.0L is showing very low pressure at idle, but level is OK. Sure sounds like a pump getting weak. And this is at around 28K miles!

I'm *real* interested in the replies to this topic!

BlackJack

45000ish 4.0L 2000 (20k on this block)

Ive driven it rough and this is a replacement block (hydro'd the first one around 25000) ive been told to check the sending unit (dunno where that is) the bearings (dunno where they are) the pickup screen (filter?) and gear clearance no idea about that)

is it lifted? if so it could have starvedfor oil,also could be main bearing problums seen a guy had a new one and it threw a rod with 30 miles on it good luck

ok but where are these bearings?

Rob

i feel your anguish! i've been getting unusually low oil pressure readings myself lately. i hear that a tj can idle at about 10psi and drive at 40+ and its fine. i am getting about 8-10 at idle and it has NEVER been that low before. i have 115k on the motor.
im told to replace the oil pressure sending unit. it is directly above the oil filter, simply screws into the block and has a snap wire plug to it. its 30 bucks at autozone. personally i just think that my engines seal, compression, rings, blah blah blah is wearing out. im just gonna pull the engine and have it rebuilt. i dont like to waste money on the hope its this hope its that game. if its a relatively low mileaged jeep then get the sending unit. then inspect the actual guage, then the oil pump, then if all fails, your f'ed.... lol..

I think the bearings you are referring to are the crankshaft bearings whick are what your crank sits on, only way to check those is to pull the oil pan and the crank shaft.

did it just start acting up recently?
If so -> do an oil change + filter first and see if that will cure the problem ...