Growling/whiring/humming noise while driving, 2002 silverado 1500 4x4 4.8L

20

Asked by Feb 07, 2011 at 11:32 PM about the 2002 Chevrolet Silverado 1500 Short Bed 4WD

Question type: Maintenance & Repair

Ok guys I have an issue thats driving me nuts. Im a diesel technician as a regular but this time im stumped and could use some assistance. My truck makes a growling/whiring/humming noise while driving, Its best heard between 25-45 mph and can be heard best when off the accelerator, radio has to be off to hear it well and it goes away when making a left hand turn. Ive already replaced the L/f wheel bearing/ hub assembly and that did not correct the issue. Im curious if anyone else is or has expirienced this issue and if they have any solutions.

4 Answers

35

check you rear diff. when i blew my g80 locker it had similar symptoms before it blew.

3 people found this helpful.

Had this same noise in a MDX I owned... Torque Converter... happens between those speeds....and its a low grumbling noise.

rocknut88 did you ever figure out what happened. you have my symptoms exactly and i cant figure out what it is.

70

i have the same humming problem and ive chnged the rear differential,axels, wheel bearing, drive shaft bearings , bought new tires im tired dont know what that sound is coming from so fustrated and broke now!!!!! HELP!!!!!

7 people found this helpful.

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