Edmunds dealer partner, Bayway Leasing, is now offering transparent lease deals via these forums. Click here to see the latest vehicles!
Popular New Cars
Popular Used Sedans
Popular Used SUVs
Popular Used Pickup Trucks
Popular Used Hatchbacks
Popular Used Minivans
Popular Used Coupes
Popular Used Wagons
Comments
Has it ever been anywhere else for service?
If the answer to both is no, then you know who did it!
That excess pressure from over tightening not only causes the warping of rotors, but other problems just in the area of braking. And other places as well.
Once a nut is overtightened beyond a point, it is the equivalent of hitting the back of the hub and the nut location of the wheel with a big hammer. Only a small amount of that deformation will go away when the nut is loosened.
That deformation will spread through the entire piece, more rapidly with repeated heating and cooling such as braking. The face of the hub will eventually not be perfectly flat to mate with a new rotor and the same with the wheel. So even with a new rotor and properly torqued nuts you are starting the problem anew with mismatched surfaces.
Further that deformed hub also houses the bearing and such forces will shorten the life of the bearing.
Demand torque wrench only!
Catch them in the act with a camera and make them replace all the parts with new.
4 new alloy wheels with dismounting, remounting, and balancing of tires, over $1000.
4 new hubs and bearings + labor, easily another $1000.
They get hit with that a few times and those impact wrenches will disappear.
And customers will have far fewer problems.
This car is an automatic!
Shut the car off from the earlier condition and restart the car and brakes are fine (sometimes). Other times if it sets for a while 6- 12 hrs I may get in it, start it up and pedal goes almost to the floor. Still other times the condition remains the same.
Brake abs work like normal with either of these conditions and brake pedal feel is normal when I finally reach the point when the brakes engage.
When the brakes go nearly to the floor at startup, after a few miles the brakes return gradually to normal.
I can also be driving with a normal to very little free play pedal and the next time I apply the brakes the pedal will go down approximately 1 1/2" lower than it was the previous time ( this fortunately happens less frequently.
It throws no fault codes and no trouble lights ever come on. It does not act like air in the brakes (ever).
It is becoming more frequent.
It can make a situation that it can't go 35 mph without downshifting the trans trying to maintain speed on a flat and level rd.
It happens with no consistancy..
I was trained as a master mechanic back in 1972 and have a remained active in auto racing and restoration ever since but have never been employed as a full time mechanic.
The car has 19,000 miles and was purchased new.
The car has been to the dealer three times and no problems were found. The fourth time they acknowledged the problem but had no solution other than start replacing parts starting with the calipers. At my expense since the warranty has expired. There were no TSBs regarding this issue and they've never heard of anything like this before.
As you can see this is an unusual problem and I need some help.
Thanks
I am from GM Customer Service. I apologize for the concern on your vehicle. Can you please email me with more information about your situation, so I can look into your situation further? You can find my email by clicking on my name. Thank you,
Mariah GM Customer Service
Have you had any luck on this since your original post? I am having the exact same problem with my 2006 Chevy Malibu, and have had it to the local shop almost a dozen times in less than 3 months. I've had the rotors, pads and calipers replaced TWICE, as well as the brake fluid flushed... all to no avail.
I am ready to pull my hair out as I still have 2.5 years left on my loan for this car but feel it's trying to kill me!
Any help you can provide would be MUCH appreciated!
Thank you!
Anyone else with this experience? Thanks.
Best of luck, Elizabeth Powell
PS invoice number CVCS752808