2003 s10 4.3

2003 CHEVROLET S-10
150,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
RCREWS
  • MEMBER
  • 2 POSTS
My s10 @ cold start makes a loud rattling sound for maybe 15 to 30 seconds and want do it again until the engine is cold. And it roars when your driving and its not the tires rearend or drive shaft. What could this be ?
Apr 7, 2011 at 2:03 PM
Advertisement
Avatar
JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
If it is a tapping noise, I suspect lifters, the oil hasn't fully circulated, yet.

The roaring noise, maybe exhaust? Radiator fan?
Apr 7, 2011 at 2:52 PM
Avatar
RCREWS
  • MEMBER
  • 2 POSTS
This doesn't sound like a lifter tap this is a loud rattling sound just been doing about a week.

Apr 7, 2011 at 2:56 PM
Avatar
JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
It's hard for me to tell much from here. I'd have to try to listen to it and try to locate. I know trying to find a noise is a pain. Sometimes they are hard for me to locate ,also.
Apr 28, 2011 at 3:34 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.