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Oil Pressure Drops to 0 after warm up

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Old March 18th, 2012, 8:12 AM
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Default Oil Pressure Drops to 0 after warm up
97 Silverado 5.7L

I'm just curious, what would cause the oil pressure to drop to 0 when the engine is warmed up? Even at 1000-1500rpm the oil pressure can be very low..the "Check Gauges" light will be on. This is the same engine with the bad connecting rod bearing.
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Old March 18th, 2012, 8:31 AM
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sounds like its time to fix the engine.
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Old March 18th, 2012, 10:36 AM
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I'll be ripping it out and replacing it but I was just curious if there was a thermo valve in the oil system that could do that.
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