Question about Cars & Trucks
Were the brake pads worn or making noise the initial reason for "changed the brakes"? If you are "emptying the brake fluid really fast" then you have a leak. The leak may not be at the brake caliper but at the master cylinder/ vacuum booster. Thus why you seem to have brake pressure when the car is off. Check closely around the master cylinder and booster mounted on the firewall (inside and outside of the car) for signs of brake fluid leaking.
Posted on Nov 04, 2012
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Posted on Jan 02, 2017
SOURCE: kia brake prob.
It's probably leaking behind the master cylinder and into the brake booster. If you have a manual transmission, it can also be leaking from the clutch, but it's probably the master cylinder. I just replaced this in mine. Check to see if any is leaking down the back of the firewall. You could loosen the bolts that hold the master to the booster and see if anything leaks out from behind there. If it does replace the master. Not hard to do yourself, just bench bleed the master cylinder and rebleed the brakes when you're done. It's also a good idea to replace the front pads at the same time, or you'll push the contaminated fluid into the new master the next time you do it.
Posted on Sep 29, 2008
any aftermarket brake fluid will be fine. the actual grade is located on the top of the fluid cap. you can find the universal grade at your local auto parts shop.
Posted on Mar 01, 2009
Check the rear wheel cylinders if you have drum brakes on the rear. Check the master cylinder cap to be sure it's on right & snug. Use D.O.T. 3 fluid,not synthetic. If you're losing fluid there's a reason. Check the front brake pads & slides for the calipers,could be frozen with rust & eating up the pads. Fluid would seem low if the pads are shot.
Posted on Jun 28, 2009
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