Four wheel drive noise

2007 GMC SIERRA
140,500 MILES • 5.3L • V8 • 4WD • AUTOMATIC
Avatar
BTOLER
  • MEMBER
  • 29 POSTS
When I put my truck in 4WD AUTO, 4WD HI or 4WD LO, it makes a whining sound and sometimes sound like it is grinding traveling and it will not turn without making a noise. Any suggestions on what is wrong or is going wrong?

Thanks!
Mar 26, 2018 at 7:54 AM
Advertisement
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good evening.

There are bearings inside the transfer case that may be the reason for the noise. you should check the oil in the case and see if there is any metal in the fluid.

It sounds like it will need to come out and be inspected.

Roy
Mar 26, 2018 at 8:01 AM
Avatar
BTOLER
  • MEMBER
  • 29 POSTS
Thank you!
I want you to know that I could not have done my top overhaul on my truck listed above 1500 SLT model. Vortec engine LH6. (Cylinder gasket set, intake manifold gasket set, cylinder solenoid manifold and lifter AMF set and new PVC valve cover) and all the torque specs and values that you provided me without you! My engine is running so good and so far it is not burning oil and using antifreeze! Hallelujah! Thank you so much for your expertise!
Mar 26, 2018 at 8:06 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
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.

Ask a new question

Frequently Asked Problems for This Vehicle