Oil Pressure Problem???
#1
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Year: 2001
Model: Cherokee
Engine: 4.0L
Oil Pressure Problem???
I have a 2001 Cherokee with the 4.0 and I have been running low oil pressure. It started when I towed my Comanche on a trailer and when sitting at a stop light the check gauges came on and the gauge read zero! I hooked up a manual gauge and when warm it reads between 12 pounds and 0 pounds of oil pressure. My question is: Is it possible that when towing for 15 miles with a heavy toung load that I starved the front main bearing causing this low oil pressure? When started I have 60 psi and it dropps to around 8 pounds when warm on the sunpro gauge.
I don't want to pull the pan and get into it if it's something else, but I do not want to damage the engine either.
Thanks!
I don't want to pull the pan and get into it if it's something else, but I do not want to damage the engine either.
Thanks!
#2
Caracticus Potts The Mod
is this a high mileage vehicle?
there are three causes.......oil pump, oil pump screen clogged, or main crank bearing failed(excessive clearence will cause pressure drop , but not any noise)
there are three causes.......oil pump, oil pump screen clogged, or main crank bearing failed(excessive clearence will cause pressure drop , but not any noise)
#3
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Year: 2001
Model: Cherokee
Engine: 4.0L
It has 103k on it, and my '98 cherokee had 160k on it and had at least 15psi of oil pressure at idle. It doesn't make any noise so I am leaning toward the main bearing, but I don't know if it's bad that it would have 60psi at startup if it's bad? The kicker is the oil pan gasket is newer so I don't know the history of the engine either which bothers me to no end.
Thanks for the reply!
Thanks for the reply!
#4
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Year: 2000
Model: Cherokee
Engine: 4.0L I6
It has 103k on it, and my '98 cherokee had 160k on it and had at least 15psi of oil pressure at idle. It doesn't make any noise so I am leaning toward the main bearing, but I don't know if it's bad that it would have 60psi at startup if it's bad? The kicker is the oil pan gasket is newer so I don't know the history of the engine either which bothers me to no end.
Thanks for the reply!
Thanks for the reply!
#6
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Year: 2000
Model: Cherokee
Engine: 4.0 I6
you will prolly have to tear into it. at cold start up mine has 40 psi, and when the oil warms up it only has about 15-20 at idle. i have seen pumps online for less than $90. i am going to have bearings, seals and a pump in hand this winter and just do it all at once just to be safe. good luck man.
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