hear a "whirring" sound when slowing down in 4 X 4. Anybody know what that is?

Asked by Dec 19, 2013 at 07:52 PM about the 2009 GMC Sierra 2500HD SLE Ext. Cab 4WD

Question type: Maintenance & Repair

3 Answers

265

its your whole drive system keeping in sync. if i'm right it's not a sound that just start happening. 4x4 is different then AWD. 4x4 locks up so all wheels spin at the same speed. you shouldnt use 4x4 unsless you need to, its made for off road. when its used on dry pavement it grinds the gears out from forcing them to sync

33,375

Sounds like a bad wheel bearing, generally when you get drivetrain bind-up the vehicle jerks and the tires will hop, only time you will get that is sharp cornering on dry pavement or when the front and back wheels are different sizes. Four wheel drive mode will put more load on the bearings, could also be a bad front u-joint or front diff.

15

usely when you hear a whinning noise and go.s away when you make a right turn check your tires or can come from rearend check lube in your pumpkins in otherwards if have a 4wheel drive your differentals

Your Answer

Add photo

Related Questions

Sierra 2500HD

Looking for a Used Sierra 2500HD in your area?

CarGurus has 14,630 nationwide Sierra 2500HD listings starting at $2,650.

ZIP:

Search GMC Sierra 2500HD Questions

GMC Sierra 2500HD Experts

#1 jeremyd12
jeremyd12
Reputation 110
#1 iEATricers
iEATricers
Reputation 110
#3 Markguidry856
Markguidry856
Reputation 100
View All

Related Models For Sale

Used Chevrolet Silverado 2500HD
308 Great Deals out of 27,045 listings starting at $1,250
Used GMC Sierra 1500
804 Great Deals out of 67,044 listings starting at $1,499
Used Ford F-250 Super Duty
338 Great Deals out of 47,712 listings starting at $1,495
Used Dodge Ram 2500
141 Great Deals out of 5,332 listings starting at $2,500
Used GMC Sierra 3500HD
48 Great Deals out of 4,097 listings starting at $8,000
Used Chevrolet Silverado 1500
1,742 Great Deals out of 169,935 listings starting at $1,800
Used Ford F-150
2,268 Great Deals out of 209,448 listings starting at $1,499
Used Ford F-350 Super Duty
389 Great Deals out of 26,814 listings starting at $3,000
Used Chevrolet Silverado 3500HD
134 Great Deals out of 8,490 listings starting at $5,095
Used Toyota Tundra
493 Great Deals out of 34,174 listings starting at $3,000
Used GMC Yukon
374 Great Deals out of 17,282 listings starting at $2,500

Used Cars For Sale

2017 GMC Sierra 2500HD For Sale
8,441 listings starting at $24,663
2016 GMC Sierra 2500HD For Sale
4 Great Deals out of 1,654 listings starting at $26,610
2015 GMC Sierra 2500HD For Sale
11 Great Deals out of 1,005 listings starting at $22,696
2014 GMC Sierra 2500HD For Sale
7 Great Deals out of 340 listings starting at $14,900
2013 GMC Sierra 2500HD For Sale
6 Great Deals out of 529 listings starting at $12,100