HIGH-pitch squeal, front rotor, 1/3 pedal pressure only, dealer SUCKS...HELP

[BIG SMOOTH]

Originally Posted by DZeckhausen

The composite shims on the Posi-Quiet pads are very effective at damping out the high frequency vibrations that cause squeal under light braking. That being said, when I had a 5.7 liter 300C, I was able to quiet down the stock pads by bedding them. So, unless the stock pads are worn down below the 50% mark, I would encourage you to save some money and try the bedding one more time. If they're near the end of their life, then go for the Posi-Quiets. You'll like them.

I do already have the Posi Quiet pads (not stock pads) that's why I'm curious as to why the squeal comes back. I've bed them in twice according to your instructions and I can't see how the pads could be worn down in 16 months but I do brake kinda hard normally (that's why I'm contemplating new pads???). I'll try another round of bedding them in and evaluate again. Thanks Dave!

[terrysrt8]

I took mine in for the same problem......squeal while breaking lightly. In the period of 18K, my pads were changed 4 times. Finally I demanded the slotted rotors, and they refused, until I advised them of the TSB. It was then the dealer realized they had the TSB and a full set of slotted rotors in stock. So they installed them for me.

[bluepearlcee!]

Hey guys I've had the same problem since my recent purchase...what is the TSB on this one? (HOW CAN I GET THE #'s) I'll be taking it in for service on Tuesday and could use the info as a back-up. Thanks...

[DZeckhausen]

Originally Posted by bluepearlcee!

Hey guys I've had the same problem since my recent purchase...what is the TSB on this one? (HOW CAN I GET THE #'s) I'll be taking it in for service on Tuesday and could use the info as a back-up. Thanks...

Here you go:

TSB #: 05-006-06
Date: August 2, 2006

Subject: Front And/Or Rear Brake Rotors Grooved/Scored

Models: 2005 - 2006 (LX) SRT8 Charger, SRT8 Magnum, SRT8 300C

Symptom/Condition: Front and/or rear brake rotors may appear grooved or
scored prematurely.

Diagnosis: Inspect the brake rotors. If the rotors show premature
grooving or scoring, perform the Repair Procedure.

Repair Procedure: Using the procedures outlined in TechCONNECT: SERVICE
INFO tab /5 - Brakes/Hydraulic replace the front and rear brake rotors
with the slotted rotors listed in the Parts Required section. Inspect
the brake pads and replace the pads as necessary.

NOTE: If premature grooving or scoring is present on any rotor, slotted
rotors must be installed in the front and rear.

Policy: Reimbursable within the provisions of the warranty.

[bluepearlcee!]

Thanks for this one! Although my rotors are not grooved or scored but possibly warped? Wonder if they'll acknowledge this as the same issue?

[DZeckhausen]

Originally Posted by bluepearlcee!

Thanks for this one! Although my rotors are not grooved or scored but possibly warped? Wonder if they'll acknowledge this as the same issue?

Are you at less than 12,000 miles?

[bluepearlcee!]

'fraid not DZ, just hit 20k... I read your threads and articles on your page about bedding benefits but got some uncomfortable steering wheel shake under heavy breaking...any idea?

[DZeckhausen]

Originally Posted by bluepearlcee!

'fraid not DZ, just hit 20k...

Bummer. Not much of a chance they'll do anything for you now. But it never hurts to ask.

I read your threads and articles on your page about bedding benefits but got some uncomfortable steering wheel shake under heavy breaking...any idea?

Did the steering wheel shake spook you enough that you didn't finish the 8 near-stops of the bedding process? Or did you complete the bedding anyway and the judder was still there?

[bluepearlcee!]

That's exactly how I would call it ... spooked!... had a car with bad rotors previous to the C and I wouldn't wanna make things any worse so I stopped after two runs. Hopefully they'll work with me and thanks again for the input DZ.

[DZeckhausen]

Originally Posted by bluepearlcee!

That's exactly how I would call it ... spooked!... had a car with bad rotors previous to the C and I wouldn't wanna make things any worse so I stopped after two runs. Hopefully they'll work with me and thanks again for the input DZ.

OK. Go back and try the bedding process again. This time, when the judder starts just grit your teeth and keep going. It's very likely that, by the time you're done, the judder will be far less, if not gone completely. Bedding will not make it worse and it may very well cure the problem completely.