Break pedal gets hard while driving.

Asked by caddone Jul 12, 2022 at 05:23 PM about the 2006 GMC Sierra 1500 SLE1 8 ft. LB RWD

Question type: Maintenance & Repair

2006 GMC breaks are normal when start driving, after a couple of miles break pedal gets hard and the breaks drag!

2 Answers
38,925

beatupchevy answered about a year ago

Bad calipers seizing up ?? Many may poo on this but before I compress the caliper I peel the rubber boot back a bit and shoot some penetrating fluid in there , done it for decades never had a problem nd calipers last the life of the vehicle . there's nothing to retract the caliper they merely relax .

Mark helpful
307,255

Gene answered about a year ago

Try flushing the brake system. The moisture content maybe too high so when the brakes get from just normal braking the moisture turns to stream causing the brakes to start to apply. Once they cool down the brakes release.

Mark helpful

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