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To fix a rear driver's side brake line on a 1994 GMC Sierra 4x4 at a shop can run as high as $300. The parts can be purchased to repair the brake line for under $50.
The Brake Booster is mounted on the firewall and the master cylinder is mounted on the booster. Look at the booster and you will see a very large vacuum line coming from the booster.
Rear brake lines leave Master cylinder as one and are junctioned at the rear of the vehicle
routing brake line driver side rear chev s-10
In the master cylinder usually located at the driver's side firewall attached to the brake booster unit - in line with the upper end of the brake pedal
If you have a booster you need a vacuum line to perform effectively, disc or drum.
No, the brake booster operates off of vacuum not electricity. If the booster isn't working then check the vacuum line going from the intake manifold to the booster. If the line is ok and not leaking then you need to replace the booster.
Look in the area of the left rear of the valve cover or chase the brake booster line.
You can cutoff the rear brake line. You will no longer have rear brakes and the fluid will leak out. It is not recommended that can't off the rear brake line, without replacing it.
If you have a power brake booster then there will be a vaccum line that runs to the brake booster on the firewall from the carburator. Check the booster for holes and broken fittings or buy a new booster. if no brake booster then brakes shouldn't affect vaccum
Yes, it is typically in the fitting on the booster where the vacuum line is attached.
Sounds like your power brake booster diaphragm is busted or there is a leak in the vacuum line going to the brake booster.