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Old 12-19-2021, 12:01 PM   #6
Mickeymotormount
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Join Date: Sep 2013
Location: Quakertown, Pa.
Posts: 109
Re: '01 2500 HD spongy brake pedal

One thing not mentioned was that I repowered the truck 18 mos. ago with an updated 6.0. The PCM was flashed for the engine upgrades, as well as tire sizes to keep the speedo in check. I would assume this flash did not go as far as calibrating the ABS module for the tire upgrade.

Also, in the winter time, I run a standard set of 16" steelies so my aluminum rims don't take a beating from the winter brining of the highways.

Regardless of what tire size I run, the brakes act the same.

I guess I may have to dive into investigating or investing in a new ABS module/unit. And then take it to the stealership to have it bled.
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John

1967 C20 2WD Longbed

2001 2500 HD 4X4 Extended cab long bed
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