Brakes can be a pain to fig out. first thing that pops in my mind is air in your lines. your van has ABS on it, you have to bleed your brakes a certain way. what im thanking is air in the ABS pump. alot of cars, you bleed your brakes RIGHT FRONT then LEFT REAR then LEFT FRONT then RIGHT REAR with ABS also the set up you are using to bleed your brakes if you dont use it right it will let air back in to your system. make shur your calpers arnt leaking
i hope this helps if not just let me know and i can give you some more tips
stockam auto
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SOURCE: i have a 92 chrsy. 5th ave with no antilock
If the pedal drops to the floor without you stepping on it or with very little effort then i would say bad booster or bad check valve on the vacuum line going to the booster. Hops this helps.
SOURCE: I have replaced both my
You do not say what year or model it is, but even though you bled the front brakes, bleed the backs too-braking system are diaginal so a front caliper is paired with the opposite side rear brake so that if there is a failure you have better control. This is especially in older vehicles (more than 10 years)-that being said, make sure there is not a leak in the hose or the plastic fitting going from the top of the engine to the brake booster. Use a can of carb cleaner or throttle body cleaner, and with the engine running, spray around the hose where it comes out of the booster, all the way to the engine-if the idle changes at all, it has a leak. It is possible the booster has failed, and worst case you will need to replace it, they are not real hard to replace and depending on what year and model/engine, usually less than $100.
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