I have checked all the lines, and im sure its coming from the nut on the front of the valve.
The fluid is leaking on the bottom.
Uhm, yup. You're right.
That's where they leak.
The problem is that the internal "piston seal" and maybe the chamber are bad.
As I said, the
only correct way is to replace the whole unit with a
new one for
Ford.
You can take your chance with a used one. But, "eventually" that used one will also leak. It's based on probability, age, use, etc. A used one may last 10 years, or it may last 10 secs. No way to know. A new one should last 10-20 years under normal use.
People have tried to take the "piston assembly" from a "good used" prop valve, and put it in the orig. That way, you don't have to take off the lines. In reality, only a VERY SMALL percentage have really been successful. There are many real-life reasons with "rubber"/etc why that's so. In general, they end up with 2 prop valves that are now not working. IMHO, that BS assembly will likely leak in a short time.
You have two, and IMHO only two choices,
1) New Prop Valve from Ford. -
Preferred.
2) Used Prop Valve hopefully from a low mileage, mostly highway car.
BTW: This is a "common" problem. No big news. Still, I personally know very well how much it can
suck for the person that has to do it!
I had to remove my prop valve for my M2300K setup. And, I went and got some 94/95 prop valves that had ABS for my setup from the junk yard. At the junk yard, I saw some prop valves, fittings, and brake-lines that were one happy piece of rust. In my car, two brake lines were rusted forever to the fittings. One was to the MC, so I didn't care. The other was to the back brakes and I ended up replacing that segment.
Good Luck! PB Blaster and those hex-nut vise grips are your best friends on this Earth right now.
