Proportioning valve
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Senior User
Joined: Apr 2016
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Proportioning valve
Looking for thoughts. I have replaced the porportioning valve 2x on my 79 f150 in the past year and it has failed again . Leaking out under the rubber boot that covers the pin . Options seen to be limited..original units are hard to find and very $$$. Aftermarket brass pv2 units seem to be Chinese junk. I amthinking about re plumbing the brake lines and using a prop valve from a 1998 jeep cherokee .
At the same time possibly the mustang master cyl upgrade.
At the same time possibly the mustang master cyl upgrade.
Fleet Mechanic
Joined: Jan 2014
Posts: 1,946
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Before you give up on finding a Ford part, try these guys. I got a new old stock motorcraft prop valve from them and I thought they were very reasonable.
AAAA Automotive
3535 Hwy 902 East
Howe, TX 75459
(903)546-0024.
Also, find the exact Ford part number for the unit you need and do an online search for it. I agree that the imported ones (even from trusted vendors) are no good, and went through two of them myself for the same reasons you stated.
AAAA Automotive
3535 Hwy 902 East
Howe, TX 75459
(903)546-0024.
Also, find the exact Ford part number for the unit you need and do an online search for it. I agree that the imported ones (even from trusted vendors) are no good, and went through two of them myself for the same reasons you stated.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Originally Posted by resonateur
Find the exact Ford part number...
1975/79: F100/150 2WD/4WD & E100/150 & F250 2WD with 6,200 lbs. GVWR // 1976/79 F250 4WD & Bronco / 1979 F350 4WD
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C8AZ-2B264-A .. Brake Pressure Differential Valve Warning Lamp Switch (comes w/the valve or available by itself) / Obsolete ~ Available NOS & from auto parts stores.
1968/69 FoMoCo Passenger Cars / 1968/79 F100/350, Bronco & Econoline.
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Senior User
Joined: Apr 2016
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Well I have another pv2 on the way (warranty replacement). I took the pin out of mine and shimmed the nylon washer with a copper one and that has stopped the leak for now. I'm still seriously thinking about using the jeep one.... just out of curiosity.. and if it works they are still available
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