1991 Chevrolet Astro Brakes Problems

“Beginning about a year ago, have had intermittent hard pedal when braking. Occurs rarely, without warning. No ABS light seen but suspect possible ABS malfunction. Pedal does not pulsate but a faint growling, grinding, or buzzing noise is heard. May be ABS motor cycling. During failure brakes are barely operative. Usually returns to normal operation after 2-3 pedal presses. Sometimes pulls sharply left, occasionally right, on brake application. There is no loss of power steering. Occurs most often at freeway speed but has also occurred at slower speeds. …”

“Abs brakes in front lock up when attempting to stop. Has been ongoing for numerous miles and now has been attributed to the control module for the kelsey hayes ABS system. Advised not to drive due to safety hazard. This apparently is a recall for several years, however, not 1991. I can not take my children in a vehicle that may lose its brakes because of an ABS control problem.”

“Although both the ABS and brake light are on the brakes appear to function properly . The master cylinder was checked and is working properly . The code scanner reads a complete failure of the antilock brake system. The dealer was contacted and advised me I was not covered under the recall for failed brake systems.”

“After a stop, vehicle off, I drove for 1/2 mile to a stop sign, road completely dry, no sand, dirt, etc, 55 degrees sunny, and brakes worked nornal as I slowed from about 20,,then all of a sudden complete loss of brakes,,and pedal went to floor,,and I pushed harder in panic,,went thru stop sign,,and took foot off brakes, and pumped pedal,,and they now worked normal. …”

“Abs system failed. Driver applied brakes at the stop sign, leaving the subdivision and the brake pedal went to the floor and the driver could not stop the vehicle, went into the traffic without stopping at the stop sign. Also, rear wheel cylinders and hydraulic distribution valve failed.”