Auto_Centric answered 8 years ago
Oil is thicker when its cold along with engine clearances being tighter less room to push the oil through requires more pressure as it warms up oil thins, and engine clearances open up reducing the pressure. Wear on the pump cause a gradual reduction in pressure overtime too.
2008 Chevrolet Avalanche LTZ 4WD
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Maintenance & Repair
message oil pressure low shut off engine 81000 miles engine purrs
2009 Chevrolet Avalanche 2LT 4WD
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Maintenance & Repair
My 5.3L v8 flex fuel engine cold start oil pressure is at 40psi and drops to 20psi 600 rpms when warm. The trucks idle gets rough when it drops under 20psi or 500rpms.
2010 Chevrolet Avalanche LTZ 4WD
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Maintenance & Repair
I just bought a 2010 Chevy Avalanche 5.3 flex fuel 6 speed transmission, when driving, my oil pressure will drop from 40psi to 30psi is this normal for this vehicle? Where is the typical oil press...
2010 Chevrolet Avalanche LTZ 4WD
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Maintenance & Repair
I have a 2012 Avalanche 53,000 miles. About 6 months ago my oil sending unit quit, changed it, & fixed the problem. 2 weeks ago my tranny quit and had it rebuilt...$3,500. Got my vehicle back and t...
2012 Chevrolet Avalanche LT 4WD
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Maintenance & Repair
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