Question about 1985 GMC C1500
We put in a brand new slave cylinder and have bled it many times and can't seem to get the pressure that is needed. We used brake fluid, is this a mistake or what else can we do to fix this problem.
Start by checking the clutch master cylinder and if that's fine you might have a clog hose
Posted on Jan 06, 2013
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Posted on Jan 02, 2017
SOURCE: '92 Jimmy rear brake failure
Have a look at bleeding procedure OF BRAKE SYSTEM. i think it helps.
There are no special bleeding procedures for the ABS SYSTEM. For bleeding, please use the standard rules as described for the conventional brake system as follows: 1. Remove the reservoir cap and fill the brake reservoir with brake fluid.
Do not allow brake fluid remain on a painted surface. Wash it off immediately. When bleeding by pressurized fluid, do not depress the brake pedal. 2. Connect the vinyl tube to the wheel cylinder bleeder plug and insert the other end of tube in a half-full container of brake fluid.
3. Slowly pump the brake pedal several times. 4. While depressing the brake pedal fully, loosen the bleeder plug until fluid starts to run out. Then, close the bleeder screw. 5. Repeat steps 3 and 4 until there are no more bubbles in the fluid. 6. Tighten the bleeder plug screw. 7. Repeat the above procedure for each wheel in the sequence shown in the illustration.
Posted on Sep 22, 2008
could be wrong here but sure sounds like its out of fluid at the "master cylinder" look near the brake master cylinder for a seperate little container for the clutch. bleeding is tricky because it is small and wants to run out of fluid quick. you have to keep adding each time you bleed. Hope I helped. Thanks
Posted on Apr 06, 2009
i have ran into this problem , but on earlier gm products---check the local dealership or a well known mechanic shop that has all data and check for bullitains. what i had found out was there was some trucks that gm had installed the wrong power booster . not saying your booster is to blame, but may be a great place to look seeing you replaced abs modules ,master cylinder ect---hope that helped out!!
Posted on Jul 08, 2009
try pumping the fork at the clutch slave with a large screw driver. make the fluid go backwards. Do not open the bleeder. I did this with a camero and it worked. hope this helps.
Posted on Jun 28, 2010
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