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Master cylinder

775 views 6 replies 5 participants last post by  Digger84 
#1 ·
While sitting at a light my break pedal slowly goes down while being pressed down. I let up and hit them again and they hold. I noticed the fluid in the front smaller compartment of the master cylinder is low. However no wheel cylinders are leaking. What is goin on? Is my master cylinder shot, or the vacume booster.
 
#3 ·
I have the same issue but my fluid doesn't really go low?? I'm considering the double diaphragm swap but haven't got around to it yet. I have a lot of other projects going on right now. I need to find out the easiest bolt in swap.

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#4 ·
I have the same issue but my fluid doesn't really go low??
The low fluid is a separate issue. Leak or normal wear on the pads/shoes

The pedal dropping and needing to be pumped once to repressurize is a sign of a leak, or master cylinder failing
 
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