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Username Post: 1994 Silverado back brakes wont bleed
"9th Year" Gold Supporting Member
Posts: 894
Loc: Canada
Reg: 11-01-04
05-26-14 05:22 PM - Post#2456139    
    In response to 454cid

Attachment: CK_Combination_Valve.jpg (35.69 KB) 187 View(s)

Attachment: Proportioning_Valve_Depressor_OTC_J-39177.gif (31.91 KB) 181 View(s)

You should have a brake warning light lit up on your dash, assuming the combination valves internal "shuttle valve" has moved. Remove the rubber dust caps (see pic), one side will have a hole, the other a brass pin which should be flush with the housing. If it is sticking out it will need to be held in during the bleeding process. This is for RWAL ABS, I don't know if the valve is the same if you have 4WAL ABS.
-91 Sierra C2500, now K2500
-81 Chev K20

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