The brakes on my truck are pulsating. If they were not ABS, I would say that the problem might be a malfunctioning flow control regulator (in hydraulics terminology), but there appears to be no such device in the ABS, and I assume the control unit performs this function. I have inspected the brakes, and preformed a few 'poor boy' test, but can find nothing out of order. My experience with automotive brakes is limited to normal braking systems, like cars use to have, therefore my knowledge of ABS voodoo is very slim. The pulsation is not consistent -- sometimes it does, sometimes not; sometimes more sever than others. Could there be air trapped in the control unit? It has dual piston type calipers; could there be an imbalance between the pistons in one, or more of the calipers?
have the same problem?
Thursday, July 15th, 2010 AT 2:58 PM