CPP Brake Conversion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Henney · 10-24-2015, 01:34 AM

I've installed the CPP under cab booster/master/proportioning valve setup. I also have the residual valves installed and the system plumbed and bled. Been driving with it daily for a few months now and every now and again if I get on the brakes real hard they will hang up for 20-30 seconds before fully releasing. It doesn't do it all of the time and I can't figure out what's causing it. It also seems like it's only the fronts hanging up and more specifically the front left. Any ideas?

10-24-2015, 01:34 AM	#1
Henney Registered User Join Date: Sep 2014 Location: Portland, OR Posts: 133	CPP Brake Conversion I've installed the CPP under cab booster/master/proportioning valve setup. I also have the residual valves installed and the system plumbed and bled. Been driving with it daily for a few months now and every now and again if I get on the brakes real hard they will hang up for 20-30 seconds before fully releasing. It doesn't do it all of the time and I can't figure out what's causing it. It also seems like it's only the fronts hanging up and more specifically the front left. Any ideas?



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