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| mendyxr6 |
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ive put in a new master cylinder, bleed the brakes and now ive no pressure even with the engine running. my ! warning light is on for hydralic failure. my guess is the booster is kaaput.
does anyone else have any other answers to my situation
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| TROYMAN |
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when you say no pressure, do you mean no pedal pressure??
if the brake pedal is rock hard with the engine running booster is not working.. if the pedal goes to the floor its a master cyl or air in the system problem.. maybe there is an air lock in the line or master cyl...???? |
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| mendyxr6 |
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yep the pedal goes to the floor. il keep investigating the problem 2moro. to hot right now
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| mendyxr6 |
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ive just gone over the brakes again.
the hydralic failure light has gone off but ive still got no pedal pressure meaning the pedal is going to the floor no matter how many times i get the missus to pump it. the booster was fine before a changed the master cylinder so im thinking more a vacuum leak but i cant hear any hissing type of noise any more ideas
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| 89.SVO |
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Age: 35 Posts: 3382 Joined: 11th Mar 2008 Ride: EA SVO, AU2, Toyota Crown Location: Bendigo |
if the booster is buggered or you have a vacuum leak the pedal will be rock hard. it has to be a hydraulic problem. did you bench bleed the master cylinder before you fitted it?
_________________ Daily driver: 2010 Toyota Crown hybrid 3.5L V6 hybrid. 254kw. |
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| TROYMAN |
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is it a brand new master cyl or a "new" second hand one??
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| mendyxr6 |
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its off my other falcon which died
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| tickford_6 |
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Posts: 6449 Joined: 11th Nov 2004 |
keep bleeding.
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| TROYMAN |
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there is a chance the the master cyl has failed,
i myself have taken working second hand ones of wrecks to have them fail as soon as air entered the system... |
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| 89.SVO |
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Age: 35 Posts: 3382 Joined: 11th Mar 2008 Ride: EA SVO, AU2, Toyota Crown Location: Bendigo |
oh. well maybe the insides were full of scale and rust and you bleeding it forced the piston passed it's normal travel into the rust and scale and damaged the seals. seen it happen before
_________________ Daily driver: 2010 Toyota Crown hybrid 3.5L V6 hybrid. 254kw. |
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| mendyxr6 |
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ive bled about 600ml through the thing with no change in pedal pressure.
the lines arent cracked the calipers dont leak its just a pain in the a**
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| 89.SVO |
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Age: 35 Posts: 3382 Joined: 11th Mar 2008 Ride: EA SVO, AU2, Toyota Crown Location: Bendigo |
mendyxr6 wrote: ive bled about 600ml through the thing with no change in pedal pressure. the lines arent cracked the calipers dont leak its just a pain in the a** do you get a nice strong stream of brake fluid through ALL bleed nipples?
_________________ Daily driver: 2010 Toyota Crown hybrid 3.5L V6 hybrid. 254kw. |
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| mendyxr6 |
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whats a brand new one cost roughly. might just go do that
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| 89.SVO |
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Age: 35 Posts: 3382 Joined: 11th Mar 2008 Ride: EA SVO, AU2, Toyota Crown Location: Bendigo |
like 200ish
_________________ Daily driver: 2010 Toyota Crown hybrid 3.5L V6 hybrid. 254kw. |
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| mendyxr6 |
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when bleeding it flows nice an easy. il try bleeding it somemorejust for the off chance it might sort itself out
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