Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
I am sorry your having this problem
i am assuming the brake fluid is full ?
if so if you remove the big 60 amp ABS fuse out of the under hood fuse box and drive the truck will the ABS stop activating and will the brake pedal be better ?
yes pull that fuse and drive it and see if the brake pedal will work good and the ABS stops activating
let me know i will be here
ok the odds are and is a very common issue on these 2003 trucks is an issue called unwanted ABS activation and is usually caused by a front wheel speed sensor signal wrong or reading 0 when the wheel is actually turing and the ABS thinks a wheel is skidding and will activate the ABS when it should not be and cause this issue
ideally it would be great if you could drive it with a scan tool connected to the truck and monitor wheel speeds and see which one is not reading correctly but most people do not have a high end scan tool to do so
the best action to take is to visually check for any up and down play in both front hubs with the front wheels off the ground one hand at 12:00 and other hand at 6:00 if you feel any up and down play that hub/bearing must be changed
if NO up and down play is felt then inspect the wiring to both front sensors if the connectors and wiring all look good then pick up 2 new front wheel speed sensors and remove the old ones and clean the hub surface off where the sensors meet the hub to bare clean metal then pop them in flush by hand then tighten them down
that should correct this issue you are having
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hard to say what the pop was other than the possibility of a hub popping in the front
go the direction i said to stop this unwanted ABS activation issue
and be sure both front hubs are good and nothing is loose in the front end also while you are there
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