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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / June 200697 Taurus SHO brake issue
Hi All! Last summer my RL brakes overheated so much that the pads melted to the disc. I took it into meineke (not happy with the local dealer's previous work) and they replaced the calipers, etc. The symptom would be a howling just after releasing the brakes after they had heated up. After a week of driving, the howling was still there, though less. They adjusted the emergency brake while the car was on the rack. It still howls, not very often, and usually when cold. They seem to think that the wheel bearing has gone. My brakes are pulsating now too (started in late April) but I am not sure which wheel yet. I'm no auto buff, just a geek :) I have a Fluke IR thermometer so I drove around braking, then measured the discs. Between 0-60f hotter on the left wheel (it fluctuates) while the others are consistent and the same temp (fronts and RR) Meineke put remanufactured calipers on last summer. My mileage has been as low as 15mpg in the city, 25hwy. Could the bearing have gone bad, or am I paying $300 for a new wheel that I don't need? What is the best way to figure this out? They also said they fired the guy who adjusted my emergency brake on the rack, that it should have be done on the ground. Meineke says they use "A C E bearing hub assemblies" and the part is $216. How does this sound? Thanks :) > Hi All! > [quoted text clipped - 36 lines] > > Thanks :) I'd first look & see if there is a flexible brake fluid line supplying fluid to that particular wheel. If so, replace it--just the flexible part. The inside can deteriorate & act as a valve, preventing the fluid (applied by the brakes to that caliper) from releasing pressure & flowing back towards the master cylinder. The effect could be just as if a brake pedal were held down tightly, applying braking force to that one wheel. (When the bad flex hose acts as a valve the other way, that particular caliper responds as if there is no fluid/pressure getting to it, allowing it to free-wheel when brakes are applied.) HTH & good luck, s Here is a picture of the rear left brake hose (from the brake section of the www.rockauto.com auto parts catalog): http://www.rockauto.com/ref/Raybestos/DetailLocal.html?BH380416.jpg The hose does have a flexible center. It would be interesting if an $11 hose did cause all this trouble. > > Hi All! > > [quoted text clipped - 45 lines] > responds as if there is no fluid/pressure getting to it, allowing it to > free-wheel when brakes are applied.) HTH & good luck, s >Hi All! > >Last summer my RL brakes overheated so much that the pads melted to the >disc. I took it into meineke If you took it to Meineke you can expect problems. They recommend services based on quotas from the corporate office as opposed to what needs to be done to fix the car. Find a good independent brake and front end shop. Don www.donsautomotive.com > (not happy with the local dealer's >previous work) and they replaced the calipers, etc. [quoted text clipped - 4 lines] >After a week of driving, the howling was still there, though less. They >adjusted the emergency brake while the car was on the rack. Almost certainly it shouldn't have been touched. >It still howls, not very often, and usually when cold. They seem to >think that the wheel bearing has gone. They are probably guessing. >My brakes are pulsating now too Rotor(s) warped/thickness variation from severe heat. > (started in late April) but I am not >sure which wheel yet. I'm no auto buff, just a geek :) [quoted text clipped - 11 lines] > >What is the best way to figure this out? Find a real mechanic who does not work at a franchise place. >They also said they fired the guy who adjusted my emergency brake on the >rack, that it should have be done on the ground. This makes no sense. Well.....might make sense to fire the guy but not how to adjust the parking brake. >Meineke says they use "A C E bearing hub assemblies" and >the part is $216. > >How does this sound? OK except you need a full reliable diagnosis first! >Thanks :)
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