1987 Chevrolet Astro Changed Oil Pump On S10 Pickup Light Still Knocking

1987 CHEVROLET ASTRO
Avatar
SAYLORHUNT
  • MEMBER
  • 2 POSTS
I changed the oil pump on my 1987 s10 pickup and my oil light is still on and it still is knocking
Nov 16, 2012 at 6:23 PM
Advertisement
Avatar
CARADIODOC
  • ✓ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
Knocking while running is a sign of excessive clearance in the bearings. Excessive clearance prevents oil pressure from building up because the oil runs out through the bearings too quickly. A new pump won't build pressure any faster. It's the bearings and crank shaft you have to look at.
Nov 16, 2012 at 7:31 PM
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.