Having problems with your Chevrolet 1500 ?
Chevy 2001 z71 truck abs light on..... every few times use brake pedal will go 2 floor..not all the time....took tires off brakes look fine pads r fine...fluid is good...not sure what 2 check for..
You need to check the codes for the ABS system.You probably have a bad sensor.The pads or fluid have nothing to do with the ABS brakes.The problem is usually one of the front hubs.These can be monitored with a scan tool .While driving slow and making turns you will see the mph drop to zero and this is when the pedal will go to the floor.The cause is usually a hair line crack in the reluctor ring in the hub.This is not repairable.The complete hub needs to be replaced.Hope this helps.Good luck.
If peddle goes to floor, every now and then, and you don't need to keep adding brake fluid, then it's going to be your master cylinder, the master cylinder is by-passing, and that's why you loose brake paddle pressure, needs to be replace or one of these time when you lease expect it, even if you pump the paddle, it is not going to hold pressure and will not have brakes.
Repair Help & Product Troubleshooting for Chevrolet 1500
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