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Jeep Wrangler YJ
YJ General Discussion
Brake pedal to the floor
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<blockquote data-quote="Rottiedawg" data-source="post: 426952" data-attributes="member: 18902"><p>Any help appreciated.</p><p></p><p>'94 Wrangler YJ IL6 - Recently completed a full brake system replacement/upgrade (Calipers, discs, drums, pads, shoes, rear cylinders, master cylinder, power booster, etc.) Only thing not done were the lines. All this because brakes were mushy, worn and just lack luster with a pedal that went to the floor.</p><p></p><p>After replacing all including brake pedal still goes all the way to the floor. Only stops by standing on it. Replaced the master cylinder again thinking it was bad. Same thing (Yes, all has been bled properly and there are no leaks).</p><p></p><p>I'm starting to think its a vacuum issue to the booster. Not sure if it is relevant, but I also have a cracked exhaust manifold that will get replaced next month.</p><p></p><p>So, if it is a vacuum issue what should the pressure amount be at the booster? Someone suggested to me to replace all of the check valves. How many are there and where are they at?</p><p></p><p>Any other thoughts?</p><p></p><p>Thanks in advance...</p></blockquote><p></p>
[QUOTE="Rottiedawg, post: 426952, member: 18902"] Any help appreciated. '94 Wrangler YJ IL6 - Recently completed a full brake system replacement/upgrade (Calipers, discs, drums, pads, shoes, rear cylinders, master cylinder, power booster, etc.) Only thing not done were the lines. All this because brakes were mushy, worn and just lack luster with a pedal that went to the floor. After replacing all including brake pedal still goes all the way to the floor. Only stops by standing on it. Replaced the master cylinder again thinking it was bad. Same thing (Yes, all has been bled properly and there are no leaks). I'm starting to think its a vacuum issue to the booster. Not sure if it is relevant, but I also have a cracked exhaust manifold that will get replaced next month. So, if it is a vacuum issue what should the pressure amount be at the booster? Someone suggested to me to replace all of the check valves. How many are there and where are they at? Any other thoughts? Thanks in advance... [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Brake pedal to the floor
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