Oil Pressure Light
#1
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Model: Cherokee
Oil Pressure Light
I have a 2004 Grand Jeep Cherokee Laredo. The Oil pressure light goes down to 0 sometimes when I stop and the the check gauge light comes on. Once I take off it goes off? What could be the problem?
#2
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Location: Telford PA
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Year: 1997
Model: Grand Cherokee
Engine: 4.0L I6
Could be a gauge is messing up and may need a new one or your OPS is messing up and is not reading when you stop but I really can not see that happoning. Guys can he get that flashed and see if that would do it?
#4
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Model: Cherokee
oil engine light coming on
Yes, oil is fine and just changed. This is been going for a while but don't happen that often. I have had it checked and no codes are showing.
#7
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Year: 1989
Model: Cherokee
Engine: 2002 WJ 4.0
sometimes the oil pressure sending can start to fail and read lower pressure than what is actually there. i have heard that the 4.0's can wear the main bearings enough to bleed oil pressure at idle. the first step is verify oil pressure with a mechanical gauge. spec is 13 psi at warm idle. if that is ok then check the sender against a known good one. if your pressure is lower than spec, the bearing clearances need to be checked. that means pulling the oil pan and visually looking at all of them. if the clearance is too high and the surfaces are in good shape, then usually you can get away with putting new bearings in that restore the proper clearance.
zedpapa
zedpapa
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#8
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Year: 1999
Model: Cherokee
Engine: 4.0L
could be the oil pressure guage sensor switch. i just had to replace mine on my cherokee and they are known to go shortly after an oil change. mine was $40 from napa...very easy to replace, took about 10 minutes
#9
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Year: 1997
Model: Grand Cherokee
Engine: 4.0L I6
#11
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Year: 1996
Model: Cherokee
i have a 99 with the same problem, theres a pressure sensor near the bottom of the block i think on the passenger side, the piece is made of plastic on the inside and thin metal on the outside, so when the motor gets hot and cools off the metal on the outside expands and contracts which causes the plastic on the inside to break, i havent gotten the part yet, but im pretty sure its an easy fix
#12
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Model: Cherokee
oil engine light coming on
I have a find who works for NAPA. I can let him get it for me. I thought the same thing you all thought. Everyone I have talked to here and other places have said the same thing. I just wanted to get your opinions also. Thanks for all the advice. We will start with that but will also check on the other things mentioned. Thanks a lot guys!
#13
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Year: 1997
Model: Grand Cherokee
Engine: 4.0
its an easy fix i had to do mine but its expensive 120 for the oem replacement all you have to do is put teflon tape on it and its good