Two problems related to brake disc caliper have been reported for the 2002 Chevrolet 1500. The most recently reported issues are listed below.
Stepped on brake peddle at idle and pedal went to the floor. Upon taking it to the repair shop, found that the brake lines were completely rusted out and the caliper bleeders were rusted off. All lines, calipers, and two rotors had to be replaced - cost $2,091.
I was driving my 2002 silverado on a narrow two lane road with a few steep grades and my brakes went to the floor on one of the down grades. I pumped the brakes but nothing happened. Luckily, I had enough time to react and use the emergency brake to get stopped at the bottom of the grade before running through the stop sign at the t intersection and possibly over the embankment directly across from me. Once I got home I realized that all the lines running along the frame to the abs box were corroded as well as the ones going to the front calipers. Once I started researching this I found out that it was a known problem. Also, one that just about everone that I know with a silverado around that same year has had. I'm just glad that my wife or my 16 year old step-daughter wasn't driving when this happened!.