1997 GMC C1500 rear end differential ?

220,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
DAVEGREEN
  • MEMBER
  • 1 POST
I am hearing a humming noise in the rear which is not noticeable during accelleration due to engine noise but while driving at steady speed I can hear it constantly and can hear it decreasing along with speed when coming to a stop. Is this a differential problem and is it reasonably fixable. I still love this old truck.
Nov 3, 2009 at 12:20 AM
Avatar
HOOTER2010
  • MEMBER
  • 5 POSTS
Its your rear end oil. Either its out or low my 97 did the same thing.
Dec 16, 2009 at 4:03 PM
Add a reply
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.

Frequently Asked Problems for This Vehicle