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1999 Chevrolet S-10 Base Reg Cab 108 WB Xtreme

1999 Chevrolet S-10
Trim Info:
Rear Wheel Drive, Reg Cab 6' Fleetside
23 mpg city / 29 mpg hwy
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July 5, 2013, 11:52 am

Kennedy C
 

Question: why do i hear squealing?

after my truck (98 chevy s10, automatic, 2.2L 4cyl, 8' bed, standard cab) starts moving this squealing noise starts, but when I apply the brakes it stops until I get moving again. I tried spraying brake squealing lube on it and that didn't help.


July 11, 2013, 4:04 pm

Ron W
Expert Mechanic

Could be the brake sensor making noise (even if it is making it without pushing on the brake pedal). You should have the brakes inspected as well as the suspension to isolate what is causing the noise.

Sometimes the sensors will make noise until you step on the brakes. Then the noise stops. This is because the brake pads slightly drag against the rotors when not applied (normal condition) and they can cock a little to set off the sensor. It's on one end of the pad. Once you apply brake pressure the pad tightens up against the rotor and squares itself up. Which has the effect of the sensor being pulled away from the rotor (stopping the noise). Eventually there isn't enough pad left and the sensors makes noise all the time (with or without braking)


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