Re: Bendix Treadle Vac failure (Easamatic)

Posted by BH On 2011/9/19 19:09:31

GM's original implementation of a ratcheting, pedal-activated parking brake, with separate release, was a no-brainer (though a bit contorted): just pull and hold the release while "modulating" that pedal.

However, the push-on/push-off of more recent years requires a bit more forethought/practice.

BTW, the brake and/or ABS light did come on - when the pedal went to the floor.


EDIT (20011/09/20 9:30AM): While use of the "parking brake" for emergency stops works with previous 4-wheel disc brake systems, I do NOT recommend it with GM's implementation of same since 2000. That design uses a single shoe that is expanded against the inside of the hub area of the rear rotor (acting as a mini-drum), but that shoe is anchored by a single, metal clip, which is fastened with a single rivet or screw. Personally, I don't believe that this attachment would hold up in a panic stop.