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Old 08-25-2017, 04:25 PM   #1
Cadillac Kid
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Two failed brake boosters, can you recomend a third?

Like the title says, my truck has already had two brake boosters and it's only left the driveway once.

My question is: Can anyone please recommend a quality replacement booster? I only need the booster, the master cylinder is brand new. My truck has factory HD brakes with the dual diaphragm booster.

I've been looking at this one:
https://www.summitracing.com/parts/tff-2232nb/overview/
Anyone used it?
I'm hoping to order a booster by the end of today. Its going to set me back days just getting one to me.

Story: When I bought my truck the brake booster was shot, so I bought a new one from my local auto parts store. I installed it and the booster was giving me problems. Exchanged it for free (lifetime warranty) and installed the second one last month. Yesterday I try to move the truck, and the brake pedal goes to the floor, and does other things. Gets stuck at the bottom, had zero resistance on the booster push-rod (could push the pedal to the floor and pull it back up with one finger. Then was perfectly normal again minutes later.
Definitely not safe!! Was going to take my second test drive when this happened. This isn't a hydraulic problem, it's definitely the booster. Two bad boosters in a row. I'm definitely not using this booster again, and the worst part is that I can't return it, only warranty it! I'm not rolling the dice a third time. So I'm out about $100. Really sucks.

Avoid at all costs: a1-cardone 50-1008
Ive been using cardone brake parts for years and never had a problem. First time I've used one of there boosters and don't recommend it.

As always, thanks!

-Gavin
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Old 08-25-2017, 04:35 PM   #2
mongocanfly
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Re: Two failed brake boosters, can you recomend a third?

a bad booster wouldn't cause the pedal to go to the floor..it would make it difficult to push pedal...the booster just assists the applied force to the pedal...you sure your masters not bad or has air in it thats not bled out?...read thru this.http://www.classicperform.com/TechBo...oubleshoot.htm
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Old 08-25-2017, 04:38 PM   #3
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Re: Two failed brake boosters, can you recomend a third?

and this..http://www.classicperform.com/TechBo...tm#testbooster
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Old 08-25-2017, 04:57 PM   #4
Cadillac Kid
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Re: Two failed brake boosters, can you recomend a third?

It's definitely the booster. Whether the master cylinder is full of fluid or full of air, the booster push rod should have some resistance to it and it should return by itself. Right now I can move the booster push-rod in and out about six inches with my pinky finger, and the push-rod has zero resistance.
Once the pedal does bottom on the floor I can hear metallic cracking noises inside the booster.
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Old 08-25-2017, 05:50 PM   #5
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Re: Two failed brake boosters, can you recomend a third?

Sample size of 1, your results may vary, etc.

I replaced mine with one from Autozone. Don't remember the brand but its been working about a year now. Just replaced the booster as the brakes themselves were fine. Single diaphragm booster.

If yours came from a chain store, take the dead one and receipt to a different store. Sounds like they got a bad batch. Might as well swap it even if you just put the next replacement on the shelf. Might even wait a couple of months, maybe the bad ones will all get bought and warrantied.
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