Whining noise on my GMC Sierra.

[Nick White]

When I start my truck it makes a weird whining noise, and it use to be only on start up and it would only happen for a couple minutes. Now it's happening all the time. Do you know why? And how to fix it?

It's a whine like big tires driving on the freeway.

 

[Molson02536]

When I start my truck it makes a weird whining noise, and it use to be only on start up and it would only happen for a couple minutes. Now it's happening all the time. Do you know why? And how to fix it?

It's a whine like big tires driving on the freeway.

Check your superintend belt tension arm, there common to go bad and make nose when miss aligned. The other would be a transmission issue from a transmission pump going bad.

Good luck and keep us posted, be glad to help you find the whining your engine is making.