1993 Chevy Truck oil pressure

1993 CHEVROLET TRUCK
186,000 MILES • V8 • 4WD • MANUAL
Avatar
LANCEB
  • MEMBER
  • 1 POST
lost oil pressure and would like to know how to tell if the oil broke down or if i lost the oil pump
May 16, 2009 at 9:50 AM
Advertisement
Avatar
MMPRINCE4000
  • ✓ASE Certified Mechanic
  • 8,548 POSTS
  • ASE Certified Mechanic
If low/no oil pressure is verified by mechanical gauge, then hopefully oil pump.

If oil is contaminated with coolant (chocolate color thin consistancy), then head gasket.
If oil is contaminated, then most likely you also have a main/cam bearing problem and engine will have to be rebuilt.

If oil is OK, then replace oil pump.
May 16, 2009 at 10:31 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.