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Re: Spongy brakes
Spongy brakes are a common problem with this truck chassis. From what I've read and from limited experience, you can bleed them till the cows come home and still have spongy brakes.
To be 100% sure, the ABS system needs to be cycled using what's called a Tech II scanner to remove all air from the unit by cycling all the ABS solenoids to dislodge any air bubbles.
Second, do the old, two-man brake bleed or the one man with the hose bubbling into a jar of fresh fluid. I've found that I can't get a good tight seal around the bleed screw to do a good vacuum bleed, but other setups may vary. DO NOT LET THE RESERVOIR GO DRY!
Three, adjust the rear brakes properly. Even though the rears don't provide the majority of the stopping power, they do engage first to give stability to the vehicle, the proportioning/combination valve then works to adjust the front/rear pressures. If these engage late due to them being too loose, then it can feel like braking is delayed.
Hope this helps!
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Current Garage:
2009 Honda CR-V EX
2006 Mazda 3i
2004 Chevrolet Silverado 2500HD
2003 GMC Envoy XL
2000 Honda ST1100
2000 Pontiac Sunfire
Vehicle History:
2003 Pontiac Vibe AWD - 1999 Acura Integra GS - 2004 4.7L Dakota Quad Cab 4x4 - 1996 GMC Jimmy 4wd - 1995 Chevrolet C2500 - 1992 Toyota Camry LE 2.2L - 1992 Chevrolet S10 Ext. Cab 4.3L - 1995 Honda ST1100 - 1980 Yamaha XS400 - 1980 Mercury Bobcat.
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