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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes When I bought this car in summer 2023, a... Grounding Cable, 2017 Jeep Renegade Trailhawk The Cable that connects my negative batt... Rough Idle (Found new thing) Hi everyone. First of all sorry for bad ...     equipment hey yall. im a first year engineering st...   HELP I have a 1956 1/2 ton panel truck, 69 35...   Howdy     Just wanted to s...   ABS/Tractiob/Brake Lights on But No DTCs Hello all, Recently while driving m...   Chevy strut replacement I'm trying to get a sensor of some kind ...   2020 suburban new transmission and issues after install recently had the transmission fail at 11...   Caliper piston post cleaning won't screw in Hello, 2013 Hyundai Elantra limited (ma...

Search Auto Parts Search master cylinder problems Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Car Troubleshooting Ed New User Nov 10, 2006, 6:38 PM Post #1 of 4 (3234 views) master cylinder problems Sign In I put new brake pads and shoes on my 1988 Chevy Silverado K1500 and adjusted the rear brakes. When I was done I stepped on the pedal to center the shoes, as I have always done with all my other vehicles when I did a brake job. After one or two pumps the pedal went to the floor and I was unable to get a good pedal. I figured the master cylinder failed so I bought a remanufactured one and installed it. I still have the same problem in that the pedal goes to the floor and won't pump up to a good pedal in order to bleed the brakes. Tom Greenleaf Ultimate Carjunky / Moderator Nov 10, 2006, 9:11 PM Post #2 of 4 (3230 views) Re: master cylinder problems Sign In Some thoughts on this: Are you convinced that bench bleeding the master was ok? If you are using a helper to pump the brake for bleeding are they holding the pedal down till you tighten up the bleeder? If not it'll just suck air back in. Also: It's possible you have a bad new master cylinder and that's tough to determine, T steve01832 Veteran Nov 11, 2006, 2:45 AM Post #3 of 4 (3228 views) Re: master cylinder problems Sign In Check the proportioning valve. Sometimes the check valve on the front needs to be reset (by pushing back in). It has a little black rubber boot around it. Steve Keoni Anonymous Poster Keoni Nov 11, 2006, 4:06 PM Post #4 of 4 (3222 views) Re: master cylinder problems Sign In I would suspect damaged brake line ( rubber flex line LF and RF ) Keoni   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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