Question about 1992 Buick Roadmaster
When coming to a stop in slick roads the rear wheels contiue to push the car forward even though I have the brakes fully engaged. Over a year ago I replaced the transmission and ever since I have had this problem.
I don't know if it is a problem with the Transmission not disengaging or if it is a problem with the rear brakes not engaging.
In any event it creates a very dangerous situation, as it did this morning when the car pushed itself all the way through a icy intersection.
I would try first to separate the two potential problem sources by (in a safe place and on a slippery surface or sand) bringing the car to a stop, then pressing firmly on the brake and then following that with pressure on the gas pedal.
With someone watching the rear wheels, see if they are attempting to turn even though the brakes are applied.
No doubt that the transmission should be disengaging but it sounds to me as if the rear wheels are not braking at all.
I don't know if your car is so equipped but it was fairly common before the era of ABS systems that there was a regulator in the line servicing the rear brakes, some sensitive to the level (loading) of the car, others to the applied pressure and still others with both capabilities. The purpose of this system was to prevent the lock-up of the rear wheels.
This regulator was passive and self-contained and rarely caused problems at all, but since they can control the pressure applied to the rear brakes, they might be capable of malfunctioning.
Posted on Dec 01, 2008
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Posted on Jan 02, 2017
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