Proportioning valve problems

[chevytech87]

So I’ve replaced my proportioning valve twice since buying my truck, and each time after about 6 months the metering valve begins to leak profusely. I’m wondering in the aftermarket units are just junk? Anyone have a factory unit laying around that doesn’t leak? Or at least is serviceable? Tired of replacing this thing and brake fluid eating my frame every 6 months.

Any suggestions appreciated, just need it fixed.

The truck is an 87 R15 disc/ drum.

 

[Chuckd84]

So I’ve replaced my proportioning valve twice since buying my truck, and each time after about 6 months the metering valve begins to leak profusely. I’m wondering in the aftermarket units are just junk? Anyone have a factory unit laying around that doesn’t leak? Or at least is serviceable? Tired of replacing this thing and brake fluid eating my frame every 6 months.

Any suggestions appreciated, just need it fixed.

The truck is an 87 R15 disc/ drum.

Ive got the same issue. Also cant find a master cylinder that will keep seals more than a year. I feel your pain

 

[fast 99]

Not the first time I have heard about them leaking. Offshore parts are questionable. Try to find used OEM.

Seems to be a lot of these being replaced and I question why. To be honest in 30 years of brake repair, several vehicles every week, probably only replaced one or 2.