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What if your brakes go all the way to the floor after pumping them up vacuum can the problem?
Chevys1010
That will have nothing to do with the vacuum. It either has a brake fluid leak / CHECK brake lines for leaks.
It is very common for the brake line that runs between the fuel tank and frame going to the rear wheel cylinders to rust in half or have a hole rusted in it. If it is leaking then you will have brake fluid leaking under the truck towards the back / Behind the cab.
If lines are okay, then check rear wheel cylinders for leaks.
If you have no leaks then the mastercylinder may be by-passing fluid inside of it.
These things are the only reason for your problem. Hope I've helped.
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∙ 14y ago
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