mudpie
I'm Awesome
Not lifted, not off road, but this is the only place that seemed obvious for a brake question.
So I've got a 1996 C2500HD, and now that fall is here I'm noticing a brake issue when the streets are wet. The rear is really touchy, and it wants to lock up easily. If I'm on a straight section of road, it feels like the anti-lock will kick in and release pressure, but I don't feel that I'm getting much in the front end. If I keep pressing the pedal harder, I start to get pressure in the front, but the whole system feels kind of weak, and I feel like I'm putting way more pressure on the pedal than should be needed to get it to stop.
Also, on occasion, if I'm going through the neighborhood and brake into a sharp turn on a side street, one wheel will lock up and it feels like the speed differential between the two wheels is locking up the rear end. I get tire scrub until I get going straight again and the rear unlocks.
I did a search, but most of the stuff I came up with was related to rear end swaps, meaning issues with master cylinders not being sized right for the wheel cylinders or similar issues. My truck is stock, and I've done nothing to the rear end since I got it a couple years ago. I also saw a few threads with similar issues that didn't get resolved, and a couple with suggestions of rear proportioning valve, but some of those were late '80's trucks. I don't know how similar the brake systems are.
Is there a common failure point? Logic tells me the proportioning valve, but I'm not really a Chevy guy, just a guy who happens to have a Chevy. I figure it's best to ask first. Any thoughts or suggestions appreciated.
So I've got a 1996 C2500HD, and now that fall is here I'm noticing a brake issue when the streets are wet. The rear is really touchy, and it wants to lock up easily. If I'm on a straight section of road, it feels like the anti-lock will kick in and release pressure, but I don't feel that I'm getting much in the front end. If I keep pressing the pedal harder, I start to get pressure in the front, but the whole system feels kind of weak, and I feel like I'm putting way more pressure on the pedal than should be needed to get it to stop.
Also, on occasion, if I'm going through the neighborhood and brake into a sharp turn on a side street, one wheel will lock up and it feels like the speed differential between the two wheels is locking up the rear end. I get tire scrub until I get going straight again and the rear unlocks.
I did a search, but most of the stuff I came up with was related to rear end swaps, meaning issues with master cylinders not being sized right for the wheel cylinders or similar issues. My truck is stock, and I've done nothing to the rear end since I got it a couple years ago. I also saw a few threads with similar issues that didn't get resolved, and a couple with suggestions of rear proportioning valve, but some of those were late '80's trucks. I don't know how similar the brake systems are.
Is there a common failure point? Logic tells me the proportioning valve, but I'm not really a Chevy guy, just a guy who happens to have a Chevy. I figure it's best to ask first. Any thoughts or suggestions appreciated.