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HD RAM - GENERAL DISCUSSION For 2500, 3500, and 4500 General Discussion.


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Old 05-17-2019, 09:23 PM
farenhite451's Avatar
farenhite451 farenhite451 is offline
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Default Caliper lock up

Hey guys, has anyone else experienced a caliper that wont release? Im on my third one on the right rear. The original wouldnt release so I replaced, the replacement wouldnt release after a year, while compressing the pistons on that one I put the clamp through the rear of the caliper. Got a new caliper and replaced the hose ans tube to the distribution block. Now this caliper is not releasing. Bad refurbished units or problem with truck
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Old 05-17-2019, 10:05 PM
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You don't really describe how/when/where the lockup(s) happened, whether suddenly or gradually, or whether there were any other symptoms that preceded/accompanied the lockups, but it seems to me that if the caliper won't release after you've loosened the brake line to that caliper to ensure there's no residual hydraulic pressure built up, then the hang up has to be in the caliper. If there's still pressure after the brake pedal is released, and loosening the brake line frees the caliper then something has to be going on with the truck. Would that not have to be the situation?
I'm assuming you've eyeballed the rotor carefully for true and dimensional consistency and you've not noticed any heating or pulsing or other undesirable issues that could compromise a caliper when driving down the road?
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