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P0521 Diagnostic Trouble Code Discussion for January 2015

Engine Oil Pressure Sensor Performance

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Trouble Ticket Help Requests for DTC P0521
Help Request Posted
2007 Chevrolet Silverado 1500 LTZ 5.3L No Start VIN: 1GCEK19J17
P0521: Oil Pressure Switch Circuit Malfunction. Customer claims to be driving down the hwy.Stalls and sends the tow truck to his house ( really ? ) and then to the shop. Got it off the tow truck and no crank . Charge the battery now it cranks but no start...sounds just like no compression.test compression o...
January 13, 2015