Grinding noise when backing up and turning

[Chevrolet Customer Svc]

solo40oz, have you been in contact with our Customer Assistance team at all during the time that you've had this issue? They should be able to help in getting this resolved for you once and for all. If you would like I can setup a case for you with them or you can call them at 1-800-222-1020. Hopefully that helps you.

Jeff Morris, Chevrolet Customer Service

[okie2]

I'm with you solo40oz. I'll take mine back too - but does this mean I have to keep taking it back every 5K to get fluid changed? Maybe someday they'll come up with a more permanent fix.

Originally Posted by solo40oz

I've had my car in twice now for this...and both times they replaced the fluid. My car started doing this again this week. I only have 5100 miles on it, and probably have less than 1000 miles since the last time they did the flush. While it is extremely annoying (I can feel the rumble in the seat), I'm really more concerned about future failure.

[woolfman72]

Well after finding this thread, I think i have the same problem . It seems like it only happens when im just backing out of the drive way or a parking spot. I guess i will have to take it to the dealer . I have a 1lt M6 . Its a weird grinding/vibration feeling .

[jsharp]

Same here i just ignore it now

[2010victoryredss_ron]

hey sorry i didnt chime in earlier,,,but mine does it too,,,seems to be a moan/grind when backing out of drive way.....i havent had it in for dealer to look at, maybe i should but im afraid of them touching my baby...lol..

[buzzy56]

I have a steep fairly short driveway.The car has done this since day one.I always believed it was the positraction friction plates binding as I was turning the wheels sharp backing out into the road.Just accepted it as the culprit.

[jsharp]

Originally Posted by buzzy56

I have a steep fairly short driveway.The car has done this since day one.I always believed it was the positraction friction plates binding as I was turning the wheels sharp backing out into the road.Just accepted it as the culprit.

Same exact deal with me i think its normal if there is such a thing

[Redemption]

Dont ignore it! Make sure and add GM limited slip additive when changing the oil. Im at 16k miles since I changed my rear diff oil.... Not a peep from it.

J

[camero]

You'll be amazed at how different the car drives after you get the additive and fluid change! It's not just the noise that will be gone, but you won't have to wrestle it around corners anymore... it will glide around them with the greatest of ease! The plates binding don't let the rear wheels rotate at different speeds as easily as they should and the binding affects drivability any time you're turning even if you don't notice it until it's gone! Plus it's got to be wearing out the diff and the tires early and burning more gas.

[solo40oz]

Originally Posted by Chevrolet Customer Svc

solo40oz, have you been in contact with our Customer Assistance team at all during the time that you've had this issue? They should be able to help in getting this resolved for you once and for all. If you would like I can setup a case for you with them or you can call them at 1-800-222-1020. Hopefully that helps you.

Jeff Morris, Chevrolet Customer Service

Jeff - thanks for the info. If I setup a case through Customer Service, how is this different from taking my car to the dealer? Does a GM engineer get involved at any point?

[Chevrolet Customer Svc]

The difference will be that you have someone from GM working for you to get the issues resolved through your dealer. At times we can help the dealer find the right documentation or make the right decisions when looking to cover the vehicle, among other things. We can also make the decision of whether or not a field representative needs to be involved or not or if bigger guns need to be used to get the issue resolved. Hopefully that explains what having a case with us can do for you.

Jeff Morris, Chevrolet Customer Service

[sexystreetmachine]

I've got the grinding problem when backing up and wheels are pointed to the LEFT. Its loud, and I can feel it in the brake pedal...dealership told me "that's just how it is"......

[Jaylin]

I've been having this same issue! At first I thougt I wasn't getting it into reverse all the way and then I had my bf do it and he had the same issue. It's like it almost pops out of gear sometimes and it also does a crazy loud grinding noise while backing up though it's not consistent. I'll definitely check on the rear differential fluid and report back what I find out.

[Eagles07]

Originally Posted by Redemption

Dont ignore it! Make sure and add GM limited slip additive when changing the oil. Im at 16k miles since I changed my rear diff oil.... Not a peep from it.

J

did you just do it yourself or take it back to the dealer? Ive had the same issues, but the dealer says "can not duplicate" which I find it hard to believe since I hear and feel it every time. Just opened a case with GM and have another appt on Saturday so we'll see what happens.