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Old 03-10-2014, 17:43   #1 (permalink)
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ef XR6 Miss at idle & brake bleed issue

Hi Everyone,

New to the forum so sorry if this has been covered before, looking for some expert advice please.
Issue 1:
Miss at idle only, replaced coil pack leads and plugs, runs normally at all other engine speeds, only started after replace brake master cylinder???

Issue 2: Replaced master cylinder with new item, bosster works fine, no visable leaks in any of the brake lines or master or calipers, car has ABS, tried to bleed up left rear right reat etc etc, got front to bleed up fine but rear just oozes out with no pressure, peddle is soft.
Took out ABS fuse in case this was causing problems with bleed, bought vacum bleed system, getting plenty of pressure from fronts with no air, but no pressure from back.

Any ideas??? 9 hr later and still no brakes, also the brake fail indicator is now constantly on???

Appreciate any advice as im all out of ideas.
cheers
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Old 03-11-2014, 10:57   #2 (permalink)
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Re: ef XR6 Miss at idle & brake bleed issue

Tried bleeding master cyl first ? Check you haven't disturbed any vac hoses .
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Old 03-11-2014, 14:25   #3 (permalink)
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Re: ef XR6 Miss at idle & brake bleed issue

yeh cheers for that, master pre bleed first be me then buy the shop that supplied it, taken it to a mechanics, they have got a pedal up but brakes are now weak,almost no stopping bite, with lots of peddle pressure although booster check shows booster working fine, ie,hard peddle with engine off then on start up peddle moves away.
discs and pads may be worn but prior to changing master the breaks were good.
??????????????
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Old 03-11-2014, 15:11   #4 (permalink)
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Re: ef XR6 Miss at idle & brake bleed issue

Why was master cyl replaced ? leaking ? . Possibly new master cyl faulty ?
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