View Full Version : testing brake master cyl and reverse lock out sol

08-25-2013, 02:31 PM
anyone have an easy way to test the master cyl and the reverse lock out solenoid on a hydraulic surge brake system like this one. the cyl is not sending pressure to the brakes not sure if it is the cyl itself or if the electric lock out is stuck in lockout mode. I can backup without the harness plugged in.


08-25-2013, 08:23 PM
Matty do the brakes work when you do a normal forward braking? The solenoid by passes the pressure, if it were stuck in that mode you would not have brakes.

08-25-2013, 09:32 PM
No brakes fwd or back. We tried to bleed them pushing the coupler in and out no fluid or air at the calipers