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Discussion Starter · #1 · (Edited)
As mentioned in the title

2002 gu 3L manual

Both pedals go soft with the engine running, however both feel fine without the engine running.
I have bleed the whole system more than once, including both master cylinders, slave, calipers and LPV without any success.

Any ideas?
 

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Discussion Starter · #4 ·
Suppose it depends on your definition of “soft” and “normal”. Both are vacuum assisted, but two separate hydraulic systems, so the feel changes when the engine is not running. If I pump either pedal on mine without the engine running, they go rock hard very quickly.

Like @rickasheye says, do you have any issues with the brakes or clutch while driving? If not, I’d suggest you have nothing to worry about. If you do, you’d either have to have two separate hydraulic leaks, which is highly unlikely, or both systems have air in them, which maybe points to your bleeding procedure.
Both are working, just seem soft to me I don't know if it's normal or not as this is the first patrol I've had.
Definitely aren't any leaks or hose probs.
Can the vacuum be to strong? What bleeding procedure would you recommend?
 

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Discussion Starter · #7 ·
Ok so disconnected vacuum hose to check, plenty of suction, hooked it back up and pedals are softer again, turn engine off and pedals are back to what I would have thought are normal after one or two pushes, softer again when engine starts again.
Again no leaks, air or swelling hoses, so does this sound right? is it just how things work on a patrol?
 

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Discussion Starter · #9 ·
Sorry forgot to say pedals went hard when I took the hose off to check


So I done the following disconnected hose with engine running pedals go really hard after one push, put the hose back on and pedals go softer again
 
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