Question about 1999 GMC Sierra
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Posted on Jan 02, 2017
check brake lines they may have gotten pinched very commonok new c/k trucks when you crank the torsion bars up to far you may have hit something and pinched the brake line check those before messing with the master cylinder those are a real pain
Posted on Sep 21, 2008
The caliper should have been bled on a bench prior to installation. You sound like you hung it on the car dry and empty and are now trying to fill it right there at the wheel. This is possible but takes MUCHO longer as you found out. You can do what you're doing, or take the caliper back off and pour as much fluid in it as you can get, with the bleeder open. What you have now is a huge air bubble that fills the cavity inside the caliper. You're almost there, keep going!!! Good luck.
Posted on Mar 20, 2009
SOURCE: I replaced all brake lines
To bleed the brakes start at the rear pass wheel. On each wheels brake cylinder will be a small bleed valve. The valve looks like a grease zert fitting, or a tube with hex flats to loosen with an end wrench. This job takes two people. Turn the ign. switch to the on position to activate the ABS system. and remove the reservoir lid. Be sure you have plenty of Brake fluid handy. fill the res. and lay the lid back on (be careful with brake fluid it can and will burn the paint off of the car) . Have your helper pump the brakes a few times and then hold the brake pedal down while you loosen the brake bleeder valve at the wheel cylinder, do not let the pedal up with the valve open.. Be sure you tell your helper to hold down the pedal until you have re-tightened the little valve. Next once you have fluid moving to the brake cyl. you are bleeding, move to the drivers side rear wheel and do the same, check the reservoir - keep it full so you do not **** air back in. Keep working around to the front pass side doing the same, pump. pump, hold - open the valve and bleed out the air, close the valve, pump, pump, pump, hold, bleed. Check the res. Move to the drivers side wheel and bleed it. Once you think your done do it again just to be sure. Start at the pass rear wheel, move around the car once more. pump, pump, pump, hold, bleed. Take your time be careful with the bleeder valves they may be very tight and try not to break them off. You only need tto loosen them a small bit to let air out. Hope this helps.
Posted on Oct 16, 2010
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