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Suspension and Brakes
Braking issue
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<blockquote data-quote="mavisky" data-source="post: 1205739" data-attributes="member: 16070"><p>Ok so I've been fighting this for a while now and I'm turning to the internet for the next round of help.</p><p></p><p>Situation: First inch or so of travel is soft and doesn't seem to accomplish anything, the next 1/2" does some braking, then the pedal gets very hard and braking doesn't really increase. The brakes slow the car down fine, but under panic braking they don't seem to be giving me full braking force. I can assure you that no matter how hard i stand on them it won't kick the ABS in.</p><p></p><p></p><p>Setup: </p><p>New master cylinder properly bench bled.</p><p>stock 95 gt calipers with properly greased slide pins</p><p>stock 18 year old rubber lines and brake lines</p><p></p><p>Remedies:</p><p>I've bled the brakes with an assistant, bled them with a vacuum, bled them with the car idling (in case that affected the abs system), and I tested to make sure the depressed further when the vacuum booster had a vacuum pulled on it. I also did everything i could to eliminate vacuum leak issues including all new rubber lines, and a new upper intake manifold gasket.</p><p></p><p>I'm about 3 steps from putting the thing up on jackstands and ripping the entire braking system off the car, buying some new parts and going through them with a fine toothed comb. </p><p></p><p></p><p>Possible solutions:</p><p>- Brake booster possibly damaged and not providing full assistance</p><p>- pads glazed and unable to brake effectively</p><p>- rubber lines expanding too much causing a reduction in force at the caliper</p><p>- still not properly bled somehow (thought I'd read somewhere about the Ford dealer using a tool to bleed through the abs unit)</p><p>- vacuum pump (hard to believe a TS1 with 1.7's would be too big though)</p></blockquote><p></p>
[QUOTE="mavisky, post: 1205739, member: 16070"] Ok so I've been fighting this for a while now and I'm turning to the internet for the next round of help. Situation: First inch or so of travel is soft and doesn't seem to accomplish anything, the next 1/2" does some braking, then the pedal gets very hard and braking doesn't really increase. The brakes slow the car down fine, but under panic braking they don't seem to be giving me full braking force. I can assure you that no matter how hard i stand on them it won't kick the ABS in. Setup: New master cylinder properly bench bled. stock 95 gt calipers with properly greased slide pins stock 18 year old rubber lines and brake lines Remedies: I've bled the brakes with an assistant, bled them with a vacuum, bled them with the car idling (in case that affected the abs system), and I tested to make sure the depressed further when the vacuum booster had a vacuum pulled on it. I also did everything i could to eliminate vacuum leak issues including all new rubber lines, and a new upper intake manifold gasket. I'm about 3 steps from putting the thing up on jackstands and ripping the entire braking system off the car, buying some new parts and going through them with a fine toothed comb. Possible solutions: - Brake booster possibly damaged and not providing full assistance - pads glazed and unable to brake effectively - rubber lines expanding too much causing a reduction in force at the caliper - still not properly bled somehow (thought I'd read somewhere about the Ford dealer using a tool to bleed through the abs unit) - vacuum pump (hard to believe a TS1 with 1.7's would be too big though) [/QUOTE]
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