92 Caravan Brakes Click

[George G]

I have a 92 Grand Caravan with ABS.

When applying the brakes to bring the van to a normal stop...say at a
light there is an audible clicking sound which seems like it is coming
from the brake pedal. The click seems to be related to the vehicle
speed...slows down as the van slows, then disappears under about 5
mph. Under hard braking, such as in a panic stop - no click.

Just installed new rotors and pads...still clicks.

Seems like an ABS issue, but I don't know where to start to
troubleshoot.

The ABS and Brake lights on the dash operate normally. I don't have a
DRB so I can't check for codes.

Any suggestion would be greatly appreciated.

Thanks

George

 

[jdoe]

You most likely have either a bad/damaged sensor or a damaged/missing tone
wheel. If it started doing this after your brake job I'd say you damaged a
sensor or wire. All you can do is a thorough inspection of the hpysical
sensors and tone wheels looking for damaged tone wheel teeth or a
broken/damaged sensor. Barring that get in in and have it fixed. I went
though a similar situation and this can and will affect braking as the
clicking noise you're hearing is the system modulating hydralic pressure to
the wheel(s) it "thinks" are locking. This IS a dangerous situation and
under certain conditions you might find yourself in serious trouble.
Larry

 

[c. tjallema]

The Chilton manual 9.93 on the Bendix system 10 (from 1991 onwards):
" The operator may hear a popping or clicking sound as the pump and/or
control valves cycle on and off during normal operation. The sounds are
due to normal operation and are not indicative of a system problem;"

Of course, I don't know what you hear.

 

[ncs]

jdoe seems to have the answer and in fact, I think he gave me the same
advice when I noticed this noise and posted my problem. The tone ring on
the passenger side front axle was broken (cracked) and the larger than
normal separation caused the clicking noise. I replaced the axle and it was
fine.

Nick