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Old 07-13-2011, 04:04 PM
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MnTom MnTom is offline
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Default Brake Issues (STILL)

OK, help me figure out how to fix my brakes. Give you some background..... Last fall I had the right caliper hang a couple of times. I took the calipers off and went to get replacements. One plug I had on a brake line leaked and I came back to an empty master cylinder (front reservoir). I put the calipers on and proceeded to bleed the brakes and could not get the pedal to be firm. I went through GALLONS of brake fluid, tried another set of calipers, five different master cylinders, replaced all but two pieces of steel brake line, all three of the rubber hoses, the proportioning valve, and the RWAL valve. I still have a mushy pedal along with the RWAL not working. Twice today I got cut off on a freeway (that's another rant!) and when I dynamited the brakes the rears locked and I had my truck sideways both times. I need to figure something out, but just don't know what else to try. I have just about the exact same thing happen on Nikki's truck and also put the first set of calipers on the truck that I sold to DavidMn. Both of them have good brakes.I am at my wit's end.......
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Old 07-13-2011, 06:06 PM
justanothercummins justanothercummins is offline
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This may be a very stupid question, but you did put the bleeder screws upward on both front calipers correct?

And did you bench bleed the master cylinders before you put them in?

And are your rear wheel cylinders dry?
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Old 07-13-2011, 06:58 PM
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Quote:
Originally Posted by justanothercummins View Post
This may be a very stupid question, but you did put the bleeder screws upward on both front calipers correct?
Yep, that is an easy one.

Quote:
Originally Posted by justanothercummins View Post
And did you bench bleed the master cylinders before you put them in?
Yessir.

Quote:
Originally Posted by justanothercummins View Post
And are your rear wheel cylinders dry?
Yes they are.
I even tried reverse bleeding the front brakes too and no luck.......
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
Duct Tape can't fix stupid, BUT it can muffle the sound
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Old 07-13-2011, 08:17 PM
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Tom I had talked to a guy when I was workin on my ranger a while back that uses a dual end reverse system on the rear because there was air between the two rear sides. Caused very similar issues to what you are still seeing. Thats bout the only thought I have.
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Old 07-13-2011, 10:38 PM
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How are you bleeding them?

Are you using a catch container and tubing?

Pressure bleeding or pumping the pedal?

I truely wonder if you got a air bubble trapped some where? But what is weird I just did a full rebuild on my caliper all the way around and had all 4 caliper off the truck and the system had bled dry and it all bled out fine.

Crazy idea but you might get a long enough piece of vinyl tubing to go from the Rear Passenger side to the master cylinder then you would have to buy GALLONS of fluid.
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2002 Dodge Ram 2500, 5.9L Cummins Turbo Diesel, 5 Speed NV4500 transmission, 4x4, 3.55 Gears, AirDog 150 fuel pump with 1/2" Big Line Kit, Stock Bosch VP44 Injection Pump, Bosch RV275 Injectors +40HP, Edge Comp Performance Box, BHAF (Big Honkin' Air Filter), Stock Holset HX35W Turbo, Straight 3" Pipe Exhaust, Crankcase Vent Mod, High Idle Mod, MPG / IAT fooler Mod, ScanGauge II, 25% Tinted Windows, DiPricol Gauges (Fuel pressure, Boost, Pyrometer), 235/85 R16 tires mounted on 16x7 Aluminum mags (weighing 62#), Custom Fog Lights, Custom Backup lights, Silverstar Headlights, 23-24 MPG

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Old 07-14-2011, 05:53 AM
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I tried bleeding with no tubing (opening and closing the bleeder), tubing and a catch bottle, tubing going from the bleeders to the master cylinder, built a vacuum bleeder, and reverse bleeding. The fronts feel just like there ia air in them. I even took it to a dealer to see if they had any 'magical' way to bleed the brakes, but $155 later the "tech" said the brakes were just fine. He had nothing to say when I was able to put the pedal on the floor with him watching.......
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
Duct Tape can't fix stupid, BUT it can muffle the sound
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Old 07-14-2011, 12:29 PM
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I forgot, if I plug the front brakes at the M/C the pedal is high and firm. If I plug the rears, the pedal is low and mushy so the air is in the front brakes.
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
Duct Tape can't fix stupid, BUT it can muffle the sound
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  #8  
Old 07-14-2011, 07:41 PM
justanothercummins justanothercummins is offline
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Have you double checked that neither of the front hoses by chance might bulge out when holding the brake pedal?
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Old 07-15-2011, 05:53 AM
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No, I have not checked that, but I don't believe that to be the problem since the pedal did the same thing before I changed all the brake lines. Maybe IF it doesn't get to hot this weekend I will check the hoses.
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
Duct Tape can't fix stupid, BUT it can muffle the sound
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  #10  
Old 07-15-2011, 09:51 AM
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That's just plain weird but now seeing you might have a clue of the front brake system...
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2002 Dodge Ram 2500, 5.9L Cummins Turbo Diesel, 5 Speed NV4500 transmission, 4x4, 3.55 Gears, AirDog 150 fuel pump with 1/2" Big Line Kit, Stock Bosch VP44 Injection Pump, Bosch RV275 Injectors +40HP, Edge Comp Performance Box, BHAF (Big Honkin' Air Filter), Stock Holset HX35W Turbo, Straight 3" Pipe Exhaust, Crankcase Vent Mod, High Idle Mod, MPG / IAT fooler Mod, ScanGauge II, 25% Tinted Windows, DiPricol Gauges (Fuel pressure, Boost, Pyrometer), 235/85 R16 tires mounted on 16x7 Aluminum mags (weighing 62#), Custom Fog Lights, Custom Backup lights, Silverstar Headlights, 23-24 MPG

1996 Dodge Ram 1500, 5.9L Magnum V8 Gasoline Engine, 46RE Automatic Transmission, 4WD with CAD axle with 3.55 Gears, Mopar Performance PCM, Gutted Kitty, ScanGauge II, 35% Tinted Windows, 16-17 MPG

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