<VV> Anti Skid Failure (NO CORVAIR)

[Duane, Jim (US SSA)]

My '01 Tahoe...

The ABS sensor on the left front backed out of the hub from rust.  That
wheel made "extra pulses" somehow and appeared to the computer to be the
only wheel with traction.  Soooo, the computer backed off the other
three brakes.  I almost clobbered a little BMW...  Fixed under recall.

Jim Duane   

-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Padgett
Sent: Monday, January 22, 2007 8:11 AM
To: virtualvairs at corvair.org
Subject: Re: <VV> Anti Skid Failure (NO CORVAIR)


>  It is my understanding that ABS failure mode is to revert back to 
> normal/standard brakes.  How did the ABS failure result in your wife 
> going out into an intersection.

I know of a very few cases of the earlier (1987-1990) GM ABS (Teves)
where 
a valve has stuck open and the ABS pushed the brake pedal back at the 
driver (usually described as "the pedal became rock hard"). In other
words, 
it goes to full anti-lock. It can happen but is rare. The normal failure

mode is to turn off the ABS.

Padgett


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