
When I picked it up, he said during the test drive, the new calipers locked up again, but was able to get them to release by loosening the brake line at the ABS. He thought that I needed a new ABS module (no dash lights ever lit).
I took it to nearest dealer and was quoted over $3000 to do the job, however they didn't know if this was the problem. Dealer had truck for three days. The calipers locked up when they tested it, so they took the brakes apart, relubed and reassembled everything, and said they didn't lock up again. I drove home, hit the brakes hard, no problem. About a mile down the road, I had to brake (not hard), and they locked up tight. I loosened the brake line and they released. I've been driving for a couple of weeks with no problems, but I haven't had to hit the brakes hard. Dealer and Mechanic can't figure it out and don't want to just start replacing big $ parts. I can't find anything solid on the web. Some suggestions have been to flush the lines with new fluid, replace the new hoses, etc, and others tell me no because both sides are locking up. Anybody run into this before and/or have ANY suggestions? I would truly appreciate any ideas you might have....Thanks...Ray