04-09-2015, 07:37 AM
This problem just started happening to me yesterday.
Could've sworn I heard a pop as I braked pulling up, and the pedal went rock hard, exactly the same as if you were pumping the pedal with the engine off.
No servo assistance until you pull off and apply some load to the engine, then it works again.
If you prolong engine overrun, say down a hill and apply the brakes lightly, you soon run out of vacuum and the brakes are crap by the time you actually need to stop.
Need to get this sorted, so will check vac pump/hoses/one-way-valve later on.
Is the vac pump the round thing above the gearbox on the end of the camshaft?
Looks like it only has the one connection, or is there another underneath that I can't see?
I guess if the servo diaphragm had gone, then you'd get no servo assistance at all?
Could've sworn I heard a pop as I braked pulling up, and the pedal went rock hard, exactly the same as if you were pumping the pedal with the engine off.
No servo assistance until you pull off and apply some load to the engine, then it works again.
If you prolong engine overrun, say down a hill and apply the brakes lightly, you soon run out of vacuum and the brakes are crap by the time you actually need to stop.
Need to get this sorted, so will check vac pump/hoses/one-way-valve later on.
Is the vac pump the round thing above the gearbox on the end of the camshaft?
Looks like it only has the one connection, or is there another underneath that I can't see?
I guess if the servo diaphragm had gone, then you'd get no servo assistance at all?