2006 Silverado HD2500, LT, Diesel, Crew cab, 49K miles -
On Sat. I approached a stop sign on a four point rural hilltop. I just barely got started when out of nowhere came speed racer in a Mazda. I stood on the brakes and watched as this guy was headed towards my door. He did manage to zig-zaged at the last possible nano second, and past me without hesitation. When I got to the next stop sign I didn't have brakes. I used the trans-brake and careful planning to get home on country back roads - about eight miles. I filled the master cylinder with bf and cleaned all around with brake cleaner and let dry. Trying the brakes again and lost the fluid but I cannot see where it's leaking. Today I put the truck on the lift and using a Phoenix reverse pump on a back wheels I finally found a pinhole in one of the brake lines. There is a slow leak where the master attaches to the booster and dripped on a bundled set of brake lines and caused corrosion eating at least 2 brake lines directly under the master cyl. I think the line was weakened to the point where jamming the brakes was the end.
I wonder if GM has seen this on other trucks? It's out of warranty, should I try to report this? Perhaps it's a beginning to a recall? Is there some parts supplier besides a dealer and NAPA that would carry pre-formed brake lines? These lines are tucked in and very tight between the rail and everything else - I wouldn't even begin to fabricate my own line, it would drive me insane to follow a dozen or more bends! I'll edit this thread with a picture in a bit.
On Sat. I approached a stop sign on a four point rural hilltop. I just barely got started when out of nowhere came speed racer in a Mazda. I stood on the brakes and watched as this guy was headed towards my door. He did manage to zig-zaged at the last possible nano second, and past me without hesitation. When I got to the next stop sign I didn't have brakes. I used the trans-brake and careful planning to get home on country back roads - about eight miles. I filled the master cylinder with bf and cleaned all around with brake cleaner and let dry. Trying the brakes again and lost the fluid but I cannot see where it's leaking. Today I put the truck on the lift and using a Phoenix reverse pump on a back wheels I finally found a pinhole in one of the brake lines. There is a slow leak where the master attaches to the booster and dripped on a bundled set of brake lines and caused corrosion eating at least 2 brake lines directly under the master cyl. I think the line was weakened to the point where jamming the brakes was the end.
I wonder if GM has seen this on other trucks? It's out of warranty, should I try to report this? Perhaps it's a beginning to a recall? Is there some parts supplier besides a dealer and NAPA that would carry pre-formed brake lines? These lines are tucked in and very tight between the rail and everything else - I wouldn't even begin to fabricate my own line, it would drive me insane to follow a dozen or more bends! I'll edit this thread with a picture in a bit.
