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Author Topic: 77 c20 brake problem  (Read 2234 times)

Offline 1979C20

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77 c20 brake problem
« on: October 12, 2011, 02:45:51 am »
On my brothers 77 c20, the brake pedal goes almost to the floor with no resistance, then gets hard. I tried to bleed the brakes just now and there was only a dribble at both sides on the rear, and the fronts had decent pressure. Any ideas why? And, the brake fluid in the rear reservoir on the master keeps draining
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF

Offline Irish_Alley

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Re: 77 c20 brake problem
« Reply #1 on: October 12, 2011, 03:55:36 am »
seams like still has air. was the system opened or did this problem just happen
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Offline thirsty

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Re: 77 c20 brake problem
« Reply #2 on: October 12, 2011, 10:44:38 am »
If the master drains it's got a leak that you have to find.
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