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GM 5.3 setting P0521
I have a 2011 GMC Sierra 1500 5.3 vin 3 setting code P0521 . It came from another shop they have installed 2 new GM oil pressure sensors. We began our diagnostic with an understanding of what is the P0521 code criteria ; SI states that the ecm monitors the oil... Login to read more. 
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| Engine | 5.3 L |
| Trans | 6-speed Automatic (Electronic) |
Vehicle Data
2011 GMC Sierra 1500 SLT 5.3L
| Engine | 5.3 L |
| Trans | 6-speed Automatic (Electronic) |
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