Review on Chevy/GMC Engine Oil Pressure Sensor Switch - Replaces 12677836, D1846A, 926040, 12585328 - Compatible with Silverado, Trailblazer, Tahoe, Suburban, Sierra, Grand Pri and other GM Vehicles by Robert Wood

I visited several local mechanics and the average cost to replace the oil pump on my '07 GMC Sierra 1500 Classic was $700. I wasn't happy with the answers I got so I searched YouTube and realized it was probably the oil pressure sensor; look, maybe it's you. So, out of all the possible suppliers, I went with GWA Auto Parts because it looked like the original equipment manufacturer of all Revain options. The repair only took 15 minutes, although it was mostly done by feel (thanks to GM for making it harder than it should have been). I suggest buying an outlet for it; I had to go to the local auto parts store to find an outlet.