With a duff accumulator the pump usually does stop but starts again immediately you touch the brakes.Could a duff accumulator cause the pump to continously run and not build pressure I wonder.
My old one was doing that, first press and it's away. New one is 2nd press.With a duff accumulator the pump usually does stop but starts again immediately you touch the brakes.
Air in the system?, did you pre-charge the new accumulator with fluid?My old one was doing that, first press and it's away. New one is 2nd press.
Eas pump is the finger test Shirley?If the pump runs until pressure is reached then can you not force the pressure sensor switch wiring to say "at pressure"/"not at pressure" to check the pump switches on/off as commanded?
If that test works but the pump continuously runs in normal operation then that says either the sensing switch is duff, or the pump has insufficient output to get to pressure?
I thought the finger test for pump pressure was a simple one?
No air, positive about that.Air in the system?, did you pre-charge the new accumulator with fluid?
I thought they said to squirt brake fluid into the accumulator to fill it until refusal and then quickly spin it over and screw it on.No air, positive about that.
Didn't think pre charging was a thing tbf.
The finger test is for the EAS, I would not recommend you try it on the hydraulic pump.If the pump runs until pressure is reached then can you not force the pressure sensor switch wiring to say "at pressure"/"not at pressure" to check the pump switches on/off as commanded?
If that test works but the pump continuously runs in normal operation then that says either the sensing switch is duff, or the pump has insufficient output to get to pressure?
I thought the finger test for pump pressure was a simple one?
No need to do anything with the accumulator release all pressure all pressure from the system, 30 pedal presses according to RAVE, unscrew the old one and screw on the new one.I thought they said to squirt brake fluid into the accumulator to fill it until refusal and then quickly spin it over and screw it on.
Ooops sorry, quite right.The finger test is for the EAS, I would not recommend you try it on the hydraulic pump.
The pressure switch is not a simple single contact on/off switch.
No need to do anything with the accumulator release all pressure all pressure from the system, 30 pedal presses according to RAVE, unscrew the old one and screw on the new one.
Agreed, if it stopped when you pulled the relay. Go straight for the relay!!Not sure.
But the pump is working yes?
But the pump isn't turning off now, yes?
To me, anyway , sounds like the pump is getting a constant 12v so more like the relay is fused closed or fusebox wiring issue. I'm not convinced you have tested the relay terminals in the fusebox properly either as has been explained by others more knowledgeable than me.
Not a criticism at all but if you don't understand what they meant by the testing then ask again.
I'm not sure I would trust a meter made by rolson either , most of their stuff is crap.