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Old 09-09-2018, 08:46 PM   #7237
68SWB4x4
Strongman Garage
 
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Join Date: Apr 2000
Location: Salinas, CA
Posts: 10,241
Re: What did you do to your truck today? Chapter II

Quote:
Originally Posted by ZEKE68 View Post
Trouble shooting the fact that I have zero rear braking with a new master cylinder and proportioning valve. Have a hard petal even with the left rear bleeder cracked open, and no flow. Think I must have a bad proportioning valve. Got another one ordered, and that doesn't fix it I will look at the rear rubber hose next. The valve trip rod is in the middle and the light is not on, and I have verified that the brake light works. Going to charge the ac tomorrow while I wait on brake parts.
Sounds like the prop valve pin needs to be reset
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