2006 Chevrolet Trailblazer Just Replaced Oil Pump Pressure Wont Over 40 Idle

2006 CHEVROLET TRAILBLAZER
115,000 MILES
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Just replaced oil pump and oil pressure wont go over 40 and at idle about 5
Nov 23, 2012 at 10:18 PM
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ASEMASTER6371
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the pump may not have been the issue. it may be worn main and/or rod bearings causing low oil pressure.

Roy
Nov 23, 2012 at 10:19 PM
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RASMATAZ
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At 2K rpm the oil pressure should be around 40psi-sounds more like excessive bearing clearances as mentioned earlier, to rule it out you need a plastigauge/micrometer and measure the clearance-if excessive either you have it ground and use undersized bearings or just get a crankshaft kit-
Nov 23, 2012 at 10:29 PM
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