Having problems with your 2003 GMC Sierra 1500 ?
Where is the oil pressure sensor located on a 2003 GMC Sierra 5.3 litre 305 Vortec?
It is on the top backside of the engine block, behind the intake manifold mounted into the top of the block. You will have to lean up over the engine to see it.
Repair Help & Product Troubleshooting for 2003 GMC Sierra 1500
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