Oil pressure gauge reads 0psi in run/while engine is running. Replaced oil pressure sensor with no change of status. No warning light/chimes nor DIC message. Is there wiring/connector to check to make sure the oil pump is working. Changed oil recently, this gauge issue started a couple of days later. No leaks, rattling or unusual noises coming from engine area. Engine purrs like a cat. Thinking maybe there's a wiring issue.
What makes this problem better or worse?
Nothing
How long has your 2004 Chevrolet Avalanche 1500 had this problem?
RepairPal Certified shops can diagnose and repair your 2004 Chevrolet Avalanche 1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
The BEST route to take is remove oil pressure switch (“sensor”) and install a manual test gauge so actual oil pressure can be observed!
Perts stores have loan a tool.
Professional quality scanner is capable of testing individual instruments and monitoring oil pressure.
Test gauge method leaves no doubt!
IF actual oil pressure is sufficient - then subsequent *hands-on* testing will be required to determine electrical failure. Good luck!