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The brake lines are not attached to the booster. They are attached to the master cylinder. To remove them, use an opened end wrench on the fittings located where the lines meet the master cylinder and slowly turn counter clockwise. BE CAREFUL NOT TO STRIP THE FITTINGS THEY ARE MADE OF BRASS AND ARE VERY SOFT!
To do it yourself, 30 or 40 bucks, for someone else to do it 2-3 hundred. Its all about the labor, brake lines and fittings are cheap, but that job takes time to do.
5/16 metal, 3/8 hose (most likely)-but get the ones you need from a dealer. brake lines are critical for safety.
The brake lines are 3/16", the fittings are metric a 131 mm wrench to get them off. These lines use a bubble flare, so pre-flared lines are the way to go. Also there are fittings available that switch from the metric bubble flare to the more familiar 45 double flare, if you just need to replace a section of the line.
The type-B variants are called manipulative as they call for the tubing modifications. Such fittings are incorporated in the setups of special supply lines such as gas lines.
if its high pressure no you will need the metal lines with the high compression fittings. hope this helps
Treads may be strip or damage. re tread or tap. with ever it needs to be done. If unable to fix. you may need to make it to a shop and have them install new brake lines or fittings.
Assuming you're in an air brake equipped vehicle, it could be a number of reasons. Loose air line fittings, ruptured air lines, or bad gaskets in one or more brake chambers would be the primary culprits.
The best thing to do in this case is make a trip to the parts store with one of the brake lines and the fitting. Buy the correct lenghts of the lines you are replacing. They also sale the flair kit so you can make your own brake lines. They don't cost much and they are pretty easy to use. Get the dark colored lines if you want them to last for years to come. The light colored lines will only last a short time 2-3 years at the most. They have many different fittings there also for your brake line replacement job.
Brass fittings can be used underground for water lines; always check your local code office first. They should not be used for gas lines.
You can not use rubber fuel lines to replace the current brake lines due to the high operating pressure. You will need to replace them with brake lines, the rubber brake lines has a different construction to hold the pressure and not getting eaten away by the brake fluid, brake lines can hold over 2000psi when the pedal is heavily applied
Master cylinder brake lines are the most common brake lines on a the Chevy Malibu.