99 Suburban oil pressure problem
August 7th, 2013, 11:40 PM
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99 Suburban oil pressure problem
I'm looking at a 99 5.7 with the possibility of buying. There was apparently a new engine about 15k ago. When the engine is up at revs oil pressure is fine. At low revs it drops to about 3 psi, dash lights up, etc.
Common causes for something like this? Sludged-up top end with pickup screen blockage? Failure to replace oil cooler with the engine change?
What think ye?
Common causes for something like this? Sludged-up top end with pickup screen blockage? Failure to replace oil cooler with the engine change?
What think ye?
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