Losing oil pressure under load
06-09-2013, 12:19 PM
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Model: Cherokee
Losing oil pressure under load
Hey guys, I have a 1994 grand cherokee limited 4.0. After a night of wheeling her pretty hard, I don't seem to be getting oil pressure to the top
End under a load. At idle it sounds fine, but accelerating it rattles pretty bad. I replaced the oil pump and sender. Any ideas?
End under a load. At idle it sounds fine, but accelerating it rattles pretty bad. I replaced the oil pump and sender. Any ideas?
06-09-2013, 01:27 PM
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Oil pumps don't make pressure, they make the oil flow. It's the tight clearances between the bearings and journals that make the pressure. If you're hearing rattling under a load it's too late, the bearings are shot.
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