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88 5KQ grinding sound from ABS - Normal?
In message <email@example.com> "David Marshall (quattro mailing list)" writes:
Neat domain name. Will it bounce?
> - When jamming on the brake and sheer ice the ABS will kick in and the car
> does come to a rather quick and even stop. It is just that the noise the
> ABS makes is horrible! It sounds like a scraping and grinding noise as if
> there was part of the brake pad missing. With the ABS turn off it is quite
> quiet. Any suggestions on what might be wrong.
Nothing at all.
> - The other thing that I noticed is if I am going about 5km/h and turn on
> the diff lock (position 1 or 2) it doesn't come on until I get above 10 or
> so km/h. Then it stays on until I'm back down to 5km/h. My 4KQ didn't do
> this. What should I be looking for?
a) It needs some 'differential movement' to engage.
b) Attach a simple vacuum tester (MityVac or some such) to the vacuum line
leaves the engine heading down the right side (left side from front of
car). It may be that there's a small leak in the actuator hose. Test
it with the selector knob in all of its positions.
Committee Member, UK Audi [ur-]quattro Owners Club