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C5 emergency brake problem

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Old Jun 10, 2021 | 04:20 PM
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Default C5 emergency brake problem

I just completed a complete brake replacement including the emergency brake pads. I attempted to adjust the tensioner by applying the e brake three times with no success. Tensioner did not apply enough tension to hold the brake. Heard cables could have stretched but hard to see that logic. Did adjust pads at wheels. Next plan to observe pads while applying e brake.
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Old Jun 10, 2021 | 05:46 PM
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Originally Posted by cjbennett
I just completed a complete brake replacement including the emergency brake pads. I attempted to adjust the tensioner by applying the e brake three times with no success. Tensioner did not apply enough tension to hold the brake. Heard cables could have stretched but hard to see that logic. Did adjust pads at wheels. Next plan to observe pads while applying e brake.
did you replace rear rotors?
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Old Jun 10, 2021 | 05:56 PM
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Default Yes

I replaced all rotor, pads and calibers,made manual adjustments at the wheels and even tried local shop try to adjust.
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Old Jun 10, 2021 | 06:02 PM
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Originally Posted by cjbennett
I replaced all rotor, pads and calibers,made manual adjustments at the wheels and even tried local shop try to adjust.
mid check your ebrake cable.
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Old Jun 10, 2021 | 07:14 PM
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Default Mid cables

Manual says remove muffler first. So will do that and inspect cables. Thanks for help so far.
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Old Jun 11, 2021 | 11:18 AM
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Have you cleaned all the dried up old grease out of the handle assembly and regreased with synthetic grease? The handle assembly takes up cable slack up to a point but if the internal parts can't move freely it won't do that. When the handle assembly is working as designed, the parking brake shoe doesn't need to be adjusted too tight which makes rotor removal in the future very difficult.
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Old Jun 11, 2021 | 07:16 PM
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Default Geaseing tensioner

Tried to grease but wanted to remove it for cleaning first. Manual said to insert pin but stuck there. Typical EE trying to do mechanical work. Will update after Sunday progress.
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Old Jun 11, 2021 | 11:25 PM
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Cranking the E-brake handle trying to make tension doesn’t work.

My e-brake had to have the adjuster at the rear drum (the star wheel) spun until I could just barely slide the drum over the e-brake shoes.

E-brake works 100% strong after that.
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Old Jun 11, 2021 | 11:30 PM
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"My e-brake had to have the adjuster at the rear drum (the star wheel) spun until I could just barely slide the drum over the e-brake shoes."

Me too-

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Old Jun 12, 2021 | 03:58 PM
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Originally Posted by jim993
"My e-brake had to have the adjuster at the rear drum (the star wheel) spun until I could just barely slide the drum over the e-brake shoes."

Me too-
Me three!
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Old Jun 17, 2021 | 06:07 PM
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Default Found problem

After observing operation of brake cables while operating handle, drivers side didn’t operate. Opened drum shoe adjusters found pin on drivers side missing. Now looking outlets for replacement. Thanks to all.
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Old Jun 18, 2021 | 09:27 AM
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The C5 E-brake system isn't one of GMs more brilliant designs.......
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