Got my car back from Toyota with rear drums squealing only during light braking. Toyota says it's fine, what could they have done that caused this? I'm thinking dumb dumb lube tech had fun with parking brake in their gravel lot. Anyway going to pull the drums off tomorrow morning and inspect, lightly sand the inner drum and shoes flush wash any gunk out with brakleen then grease the contact points. Anything else to check over and do?
Rear drum brake squeal
- Thread starter Oildudeny
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It seems very evident they either don't want to back their work or they never test drove the car. Hope you have another Toyota Dealer close.
Why call the lube tech a "dumb dumb"?
Originally Posted by Oildudeny
Got my car back from Toyota with rear drums squealing only during light braking. Toyota says it's fine, what could they have done that caused this? I'm thinking dumb dumb lube tech had fun with parking brake in their gravel lot. Anyway going to pull the drums off tomorrow morning and inspect, lightly sand the inner drum and shoes flush wash any gunk out with brakleen then grease the contact points. Anything else to check over and do?
Originally Posted by Oildudeny
Got my car back from Toyota with rear drums squealing only during light braking. Toyota says it's fine, what could they have done that caused this? I'm thinking dumb dumb lube tech had fun with parking brake in their gravel lot. Anyway going to pull the drums off tomorrow morning and inspect, lightly sand the inner drum and shoes flush wash any gunk out with brakleen then grease the contact points. Anything else to check over and do?
What did you have done? If they rotated your tires the drums could have relaxed, letting some internal grit loose that now squeals.
Jumping to the immediate conclusion that they were horsing around may poison any good relationship you have with a mechanic.
Jumping to the immediate conclusion that they were horsing around may poison any good relationship you have with a mechanic.
Originally Posted by Oildudeny
Got my car back from Toyota with rear drums squealing only during light braking. Toyota says it's fine, what could they have done that caused this?
Any chance that they washed or powerwashed your car and got dirt, oil or grease into the drum?
Got my car back from Toyota with rear drums squealing only during light braking. Toyota says it's fine, what could they have done that caused this?
Any chance that they washed or powerwashed your car and got dirt, oil or grease into the drum?
Did you, by chance, have your rear brakes serviced?
Go to a large mall or business parking lot. Drive around backwards fast and brake hard, spend 3 minutes doing this, then go about your normal driving, let cool 20 minutes. At 30 mph pull up on your parking brake hard for 10 seconds let cool repeat. Drive as normal.
Originally Posted by Mainia
At 30 mph pull up on your parking brake hard for 10 seconds let cool repeat.
On the street, this is a guaranteed way to bring the back end around and wreck the car. You must only do this in the middle of an empty parking lot. Regardless, I don't see how this is going to solve the OP's problem.
At 30 mph pull up on your parking brake hard for 10 seconds let cool repeat.
On the street, this is a guaranteed way to bring the back end around and wreck the car. You must only do this in the middle of an empty parking lot. Regardless, I don't see how this is going to solve the OP's problem.
If the brakes have been worked on, a few stops in reverse can be useful. Most drum brakes have a self-adjusting mechanism that is activated by stopping (with the brake pedal, not the hand brake) while the car is moving backwards.
Interesting that the OP's concern is someone may have been driving the car abusively, so advise here is for him to drive the car abusively to fix it.
Interesting that the OP's concern is someone may have been driving the car abusively, so advise here is for him to drive the car abusively to fix it.
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Originally Posted by mk378
Interesting that the OP's concern is someone may have been driving the car abusively, so advise here is for him to drive the car abusively to fix it.
I don't beat my car so I definitely won't be taking that advice on yanking the parking brake heating and cooling the drums. All I see in that is causing more squealing by glazing the shoes and drums. I did try the reverse thing in an open lot last night no luck with that being a fix.
This morning I took the drums off brakleened and sanded the drums and shoes took the car for a short drive up the block so far all good. Thanks everyone.
Interesting that the OP's concern is someone may have been driving the car abusively, so advise here is for him to drive the car abusively to fix it.
I don't beat my car so I definitely won't be taking that advice on yanking the parking brake heating and cooling the drums. All I see in that is causing more squealing by glazing the shoes and drums. I did try the reverse thing in an open lot last night no luck with that being a fix.
This morning I took the drums off brakleened and sanded the drums and shoes took the car for a short drive up the block so far all good. Thanks everyone.
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