1997 Ford Truck necessity of turning brake rotors

1997 FORD TRUCK
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MICHAELHARNED
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Brakes problem
1997 Ford Truck V8 Four Wheel Drive Automatic 200k miles

My uncle needs new front disc brakes on his truck. I advised him just to replace the pads, don't worry about having rotors turned, that's usually just a ticket average booster for the shop. If the rotors are a little groovy, then the pads will wear to fit the grooves, unless the rotors are obviously damaged, then rotor replacement might be in order. I have been told that on some newer models, where sensors are involved, not turning the rotors when replacing pads can cause computer problems. I am old-school, so can you advise me on this matter? I have done my own brakes repeatedly through the years, and we never worried about the rotors back in my motor-pool days, but as I am planning to do my uncle's brakes, I want to leave no stone unturned. Thanks, Doityerselfer.
Feb 14, 2009 at 12:48 PM
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RACEFAN966
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Ok first off as a tech you should alway's turn rotors it is not a ticket booster. You use your brakes you get the rotors hot and cold and they can worp and the metal is also glazed from the heat. Now you put new pads on glazed rotors and your brakes do not have any fresh metal to grip to and wear to. Also you do not know what the lateral run out is either so one side of the rotor may be thinner then the other on a vented rotor so it will get one side hotter then the other affecting your braking power. Also you do not know how thin they are as they could be out of spec and need to be replaced. As for me it is alway's turn the rotors so they get checked for run out, thickness and the pads get fresh metal to grip to. You just don't cheat on brakes, if they fail you pay.
Feb 14, 2009 at 1:08 PM