During wet/snow condtions the ABS does not operation properly. When breaking under these conditions the brakes do not engage properly, there is a shutter feeling in the steering wheel and brake pedal and very odd noise from the front end. The truck does not slow/stop like it should. My guess is that the ABS module is defective but I'm not sure. Thank you for your assistance.
Brake System on 1995 Chevrolet Suburban 1500
by GRB in Warrenton, VA on March 13, 2009
1 answer 1 comment
ANSWER by rdude135 on March 14, 2009
I believe what you are describing is the ABS system working. The ABS prevents the wheels from locking up and it's done by controlling the brake pressure. The shudder noise you feel is the ABS modulator operating, the odd noise is the modulator itself working, and as with any ABS vehicle as long as the tires are spinning, that means that there is traction (not necessarily on ice). The vehicle will actually stop in a shorter distance with ABS working keeping the tires rotating than skidding tires without ABS.
COMMENT by Heavy Chevys on July 16, 2014
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