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SCM
Samba Member
Joined: January 26, 2011
Posts: 3118
Location: Bozeman MT
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 Posted: Sat Jun 08, 2019 1:47 pm Post subject: Re: Why do my rear brakes appear to work great but squeal so bad? |
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| Abscate wrote: |
You probably have hydraulic issues o the cold side
Plugged lines
Rusted. Wheel cylinder |
How would you test that? The "cold" brake engages when you push the pedal and disengages immediately after releasing the pedal.
Nothing is rusty.
If I wanted to flush that line, is it alright to just open the bleeder or should I disconnect the line from the wheel cylinder (to prevent anything getting lodged in the cylinder)?
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'91 Westfalia GL Automatic (GTA "Turbo" Rebuild w/Peloquin) and 2.3L GoWesty Engine |
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tjet 
Samba Member
Joined: June 10, 2014
Posts: 3533
Location: CA & NM
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| Posted: Sat Jun 08, 2019 2:28 pm Post subject: Re: Why do my rear brakes appear to work great but squeal so bad? |
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| Maybe swap the wheel cylinders from right-to-left? |
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Merian
Samba Member
Joined: January 04, 2014
Posts: 5212
Location: Orygun
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| Posted: Sat Jun 08, 2019 2:29 pm Post subject: Re: Why do my rear brakes appear to work great but squeal so bad? |
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| SCM wrote: |
I forgot to mention that all the rubber hoses were replaced when I did the other brake work, including flushing the old brake fluid.
Crappy new parts is something to consider though. |
ok, good for you!
just get under and squeeze each hose to be sure the hoses are ok
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SCM
Samba Member
Joined: January 26, 2011
Posts: 3118
Location: Bozeman MT
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| Posted: Fri Jun 14, 2019 4:01 pm Post subject: Re: Why do my rear brakes appear to work great but squeal so bad? |
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Well, just an anticlimactic update.
I punted this one to my mechanic - I travel for work in the summer so only allow myself about a week to figure stuff out in order to maximize my time USING the van.
They can't find anything wrong although something clearly is. We're thinking maybe something is only occasionally sticking so they're going to replace the wheel cylinder and e-brake cable.
We'll see how that goes. At least I won't get hit with the $1,300 bill like the guy ahead of me at the counter when I dropped off the van this morning 
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'91 Westfalia GL Automatic (GTA "Turbo" Rebuild w/Peloquin) and 2.3L GoWesty Engine |
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SCM
Samba Member
Joined: January 26, 2011
Posts: 3118
Location: Bozeman MT
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| Posted: Mon Feb 19, 2024 12:45 pm Post subject: Why do my rear brakes work but squeel (Solved, sort of) |
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It was pointed out to me via PM that I never posted the final result of this saga. TLDR: everything is working fine but I don't know/remember why.
The mechanic replaced the E-brake cable and wheel cylinder on the noisy wheel and it's been silent ever since. He said, "I hate firing the parts cannon and neither of these parts should explain the noise. But old VWs are weird and it seems to have worked".
I've since wondered if the E-brake cable got rerouted in a poor way when my trans was R&Red and that was causing the brake shoe to drag, overheat, and get noisy. Installing a new cable allowed the mech to get the routing correct.
Either way, my brakes work and are quite going on 5 years later.
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