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Service adviser is blaming brake dust for my brakes squealing

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Old 12-21-2018, 08:13 PM
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Fogboundturtle
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Default Service adviser is blaming brake dust for my brakes squealing

So first problem on my Certified Pre-Owned Vette. Brake are squealing after driving for 5 minutes. It only happens when I apply the break at lower speed. I was talking to the adviser and he was trying to tell me it was a normal condition What a bunch of baloney. The worst is the early appointment at the dealer is January 5th. So now I have to live with squealing break for almost 2 weeks. This dealership has allegedly 3 master technician and are hosting the local vette club. I was confident that I was buying from a dealership that understood and know how to service corvette. Hopefully it's just the adviser on the phone that is a idiot and the technician actually knows what he is doing.

On other note, I found out that the car has 36% oil life when I got it. I would have expected the oi life would be at 100% when you buy a CPO. Fresh oil and a new filter would be the least I would expect by a certified vehicle. I will have to talk to the sales manager and get myself a free oil change.

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Old 12-21-2018, 08:18 PM
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If it's doing it under light braking conditions, have you tried the old "get up to 45, brake hard to 10 and repeat a few times without actually stopping" bit?
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Old 12-21-2018, 08:19 PM
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Originally Posted by KenHorse
If it's doing it under light braking conditions, have you tried the old "get up to 45, brake hard to 10 and repeat a few times without actually stopping" bit?
I haven't but I can try tomorrow.
Old 12-21-2018, 08:20 PM
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Brakes.
Old 12-21-2018, 08:21 PM
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Originally Posted by Steve_R
Brakes.
Them's the?
Old 12-21-2018, 08:22 PM
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PatternDayTrader
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Don't expect good technical information from a service advisor. Think of them as a waiter/waitress at a restaurant. You tell them what you want, and hopefully you get it. Regardless of whether you do or don't, they just take your order.
Old 12-21-2018, 08:25 PM
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Originally Posted by Fogboundturtle
So first problem on my Certified Pre-Owned Vette. Break are squealing after driving for 5 minutes. It only happens when I apply the break at lower speed. I was talking to the adviser and he was trying to tell me it was a normal condition What a bunch of baloney. The worst is the early appointment at the dealer is January 5th. So now I have to live with squealing break for almost 2 weeks. This dealership has allegedly 3 master technician and are hosting the local vette club. I was confident that I was buying from a dealership that understood and know how to service corvette. Hopefully it's just the adviser on the phone that is a idiot and the technician actually knows what he is doing.

On other note, I found out that the car has 36% oil life when I got it. I would have expected the oi life would be at 100% when you buy a CPO. Fresh oil and a new filter would be the least I would expect by a certified vehicle. I will have to talk to the sales manager and get myself a free oil change.
You have a misconception what a Certified Pre Owned (CPO) vehicle really is. Watch this YouTube video from this lawyer that has worked in the field of consumer law for 20+ years. He knows his stuff and you'll learn a lot about this topic watching it. You will be surprised to learn what CPO really is.



Last edited by MMD; 12-21-2018 at 08:38 PM.
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Old 12-21-2018, 08:33 PM
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CPO... simply more marketing hype.
Old 12-21-2018, 08:39 PM
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CPO = Callously Projecting Optimism

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Old 12-21-2018, 08:48 PM
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Originally Posted by PatternDayTrader
Don't expect good technical information from a service advisor. Think of them as a waiter/waitress at a restaurant. You tell them what you want, and hopefully you get it. Regardless of whether you do or don't, they just take your order.
I'll see if I can talk to the Master Technician when I go there.
Old 12-21-2018, 08:54 PM
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Ask for a copy of the report that shows the vehicles service and warranty history.

It will show where and when the car was sold originally.

You should have done this before you bought the car. Possibly the oil was changed but they forgot to reset the monitor.

Try the bedding process mentioned by KenHorse.

Preston was a good dealer but it may be part of a conglomerate now and no longer belongs to the Preston family.

Oh, and stop bragging about being able to drive all year long here or more people will be moving in.
Old 12-21-2018, 08:56 PM
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Originally Posted by dyoung
Ask for a copy of the report that shows the vehicles service and warranty history.

It will show where and when the car was sold originally.

You should have done this before you bought the car. Possibly the oil was changed but they forgot to reset the monitor.

Try the bedding process mentioned by KenHorse.

Preston was a good dealer but it may be part of a conglomerate now and no longer belongs to the Preston family.

Oh, and stop bragging about being able to drive all year long here or more people will be moving in.
It was originally sold by Preston GM. I looked at the CarFax report before buying. If anyone can afford any of the houses around here, they can move in if they want....
Old 12-21-2018, 08:59 PM
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Originally Posted by Fogboundturtle
I'll see if I can talk to the Master Technician when I go there.
You can certainly try to do that. Just keep in mind that many of these guys prefer to be left alone, and are not particularly social.
Not all, but many are, which is why they gravitate towards working with mechanical things instead of working with people.
Old 12-21-2018, 09:02 PM
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I own a C5. At the end of last summer, I noticed what sounded like low speed break squealing from the driver's side rear. When I put it up for the winter, my mechanic takes care of maintenance and any issues. He only works on Corvettes and knows his stuff. I pointed out the break squealing and he said he would look into it. He called me back and said all four brakes check out just fine and suggested that it might have been brake dust. Maybe he just did the "get up to 45, brake hard to 10 and repeat a few times without actually stopping" bit on my car. Who knows.

He would have gladly offered to do the work to address any problem he found, but he didn't. Guess I'll know for sure in about four months.
Old 12-21-2018, 09:12 PM
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Originally Posted by Fogboundturtle
I haven't but I can try tomorrow.
If you do, keep driving for 5 minutes or so without applying the brakes to let 'em cool down and the compound to properly set.

(a back road is the perfect place for this procedure)
Old 12-21-2018, 09:22 PM
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Originally Posted by Fogboundturtle
So first problem on my Certified Pre-Owned Vette. Brake are squealing after driving for 5 minutes. It only happens when I apply the break at lower speed. I was talking to the adviser and he was trying to tell me it was a normal condition What a bunch of baloney. The worst is the early appointment at the dealer is January 5th. So now I have to live with squealing break for almost 2 weeks. This dealership has allegedly 3 master technician and are hosting the local vette club. I was confident that I was buying from a dealership that understood and know how to service corvette. Hopefully it's just the adviser on the phone that is a idiot and the technician actually knows what he is doing.

On other note, I found out that the car has 36% oil life when I got it. I would have expected the oi life would be at 100% when you buy a CPO. Fresh oil and a new filter would be the least I would expect by a certified vehicle. I will have to talk to the sales manager and get myself a free oil change.
Here is what the 2019 Corvette Owner's manual says about brakes, brake wear, replacement, etc. Brake noise can be normal in certain circumstances.



Old 12-21-2018, 09:24 PM
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^^^^ Good info there MMD … Pretty much says it all.
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Old 12-22-2018, 06:45 AM
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Originally Posted by Fogboundturtle
It was originally sold by Preston GM. I looked at the CarFax report before buying. If anyone can afford any of the houses around here, they can move in if they want....
I was thinking the same thing re "affordability"....
Old 12-22-2018, 07:25 AM
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Originally Posted by PatternDayTrader
^^^^ Good info there MMD … Pretty much says it all.
.....especially the section on ceramic rotors. Weighing them rather than measuring their thickness for wear when changing pads.
Old 12-22-2018, 10:47 AM
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I had performance break before and I never had them squeals ever. I just found it strange that I get the squealing at low speed only after I driven the car for x amount of time. I am 10km away from the office. I get a little bit of traffic. By the time I get home, I will start squealing a little bit. Once the break cool down, they are perfectly fine. I am not a mechanic but that doesn't sound right.


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