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Breaks went out 2006 grand caravan. first lost power brakes and pedal was hard to push then went to the floor now goes all the way down and wont build pressure. checked all lines its full of fluid with no leaks all calipers seem ok
Re: Breaks went out 2006 grand caravan. first lost power...
IT sounds like your brake mastercylinder has went out so what you need to do is get a new mastercylinder and replace that and bleed out the whole brake system after you put on the new mastercylinder.
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Search for the brake fluid leak the brake system is a sealed unit if going through fluid like crazy it is leaking somewhere look under at back of tires and along the top of fuel tank for fluid if not noticeable on floor also inspect the brake booster
If your brake pedal went into the floor and there is no braking power that can mean that you have lost pressure in the braking system, this can be caused by two factors. One, a leaking brake cylinder by the caliper, or two damage to the brake booster, which means the seal that is inside is gone. Both are easily replaceable, well the brake booster has to be replaced not the seal, but the cylinder at the wheel can be reconditioned by replacing seals and the boot.
Check the vacuum line on the power brake booster, the diaphram may be pushing the air down the rod, the break booster may be defective all together if the vacuum line is intact.
Its very possible that you have a bad master cylinder or power booster.I would check your master cylinder first.Also I would check the rear wheel cylinders and calipers for any kind of fluid leaks.
When you push the caliper piston in to install the new brake pads, you have to keep pumping the brake paddle after the new pads and every thing is put back together, the paddle will come back up, do it with the engine off.
i guess your brake booster is the problem. try this.... engine not running just pump the brake at least 25 times at the 25 count,just keep your feet on the brake pedal and start the engine. if the brake pedal won't go down even a little... your brake booster is gone. or something with the vacuum.
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