Re: [AMC-list] brakes - or lack thereof

[Jim Blair <carnuck@xxxxxxxxxxx>]

If you don't have ABS, then the problem is limited to just a few possibilities. First, have someone push the pedal and look to see if any of the 3 brake hoses are ballooning. 
  Next, check to see if one (or more) caliper pins fell out, or possibly a pad disintegrated and bound in on an angle, acting like a trampoline (I've seen it in four or five vehicles over the years)
   Did you manually adjust the rear shoes? I've had the adjusters skip back in and drop the pedal. If that doesn't work, it only leaves the brake booster going bad. 
   Again, this is on pretty much it for troubleshooting all non-abs American vehicle systems with front disc/rear drum and many disc/disc systems. 
   

Sent from my iPhone

From: <superglider@xxxxxxxx>
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Subject: [AMC-list] brakes - or lack thereof
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Not quite an AMC but a decendent, my 2001 XJ has a brake problem that I
can't figure out.  It was driving fine and then the pedal went to the
floor with limited braking.  Checked for leaks - none.  Pulled the rear
wheels to see if a brake adjuster had fallen out- nope.  Figured it had
to be the MC not building pressure.  Got a rebuilt and bench bled it. 
Put it on and same issue.  Plug the brake line fittings at the MC and it
is rock solid.  The next step is a full bleeding of the system but I
don't see how air could have gotten without a leak or hole somewhere.

Anyway, looking for ideas this feeble mind might have missed.  We have
owned it since new and 2 years ago replaced calipers, wheel cylinders and
all the brake lines from the prop. valve on back including the rubber
hoses.

Stumped!
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