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Discussion Starter #1
Ive changed and adjusted everything :lol:

I have been chasing a soft and erratic pedal operation for about a year...
I first thought calipers...I did that...then I thought I have never done the rears--so I did those all new. Master cylinder - done
Then I thought maybe it is the hoses. I changed those.
Ive bled and bled the system.

The pedal is still soft and braking performance totally sucks. It feels like it only has 1/2 the brake power that it used to. I sometimes hit the maximum pedal pressing.

There are no leaks, no rust and nothing else is broken.

Any other ideas...it seems to me the booster is broke.

Thanks
 

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It's important to turn the rear drums and adjust them correctly to be able to get a firm pedal. Also make sure the rear adjusters are in good working order.
 

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It's important to turn the rear drums and adjust them correctly to be able to get a firm pedal. Also make sure the rear adjusters are in good working order.


I second that. Good way to adjust them would be with the drums off. Put the pedal down three clicks, then adjust until you barely can’t fit the drum on. Should be adjusted just right afterwards


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Discussion Starter #6
Rears are perfect...brand new and adjusted correctly.

I think and I forgot that there is a ABS pump under the battery.
That may be it. I spoke to an old tech and he said it could exhibit the same issue.
We went all over it again...everything is good but the pedal and performance sucks...
That pump is buried! Ill have to remove the batter and DC to get to it...it is really down in there...
We are running out of ideas...so were going to get it eventually LOL
 

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If you changed your master cylinder at any point, make sure the rod from the brake pedal into the master cylinder is adjusted correctly. if it is too short, no or soft brakes. the rod may look like it is not adjustable, but it is two parts screwed together. On one occasion, i had to take the rod and clamp it in a vise while turning the other end. Looking at the rod it appeared to be one solid piece. It was very difficult to see where the two parts were screwed together.
 

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Discussion Starter #9
Just to update you all about the fix...it was the ABS pump/module.
We bypassed it with a brass union...brakes work great again! :)
 
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