Jim Grant's Tech Tips
99
Chevy Silverado, Buzzing Noise and ABS Light Update
Q: Your tech tip concerning the buzzing noise and ABS warning light
illuminated on a ‘99 Chevy Silverado is not completely correct. The
Chevy Silverado ABS module and pump is located on the left frame rail
about midway. The noise very well could have been the ABS pump motor running
continuously. I work at a Chevy dealer and have experienced this condition.
The ABS module and pump you mentioned are found in the C and K series
truck and not the Silverado (Just another confusing nomenclature that
the General likes to confuse the public and its technicians with).....John
Squires
A: The
article John was referring to was in response to this reader’s question;
I was driving home when the ABS light came on. I heard a humming, vibrating
noise coming from the underside of the truck. I parked, turned off the
ignition and the sound continued. The only way to stop it was to disconnect
the battery cable. I reconnected the cable the following morning and the
sound resumed. This seemed to be under the truck about midway. Any ideas
of what could cause this?
I had located
the ABS pump unit under the hood and not on the frame as John has pointed
out. Thanks for the heads up John. Stop by the shop and I’ll buy
you a coffee.
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