Problems with DIY Exh Brake/EBPV? - Ford Powerstroke Diesel Forum
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Old 11-24-2013, 10:06 PM
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Problems with DIY Exh Brake/EBPV?

Ok so I decided I wanted to try the DIY exhaust brake method before buying a $1,000 aftermarket unit.

I unplugged the connector from the compressor housing and cut it from the factory harness about 3-4" back from the plug. I ran the colored wire straight to a battery with an in line fuse, and I ran the black wire in the cab to a 2 speed style push pull switch. The valve will function with the switch in the on position and the truck idling, but when I'm going down the road and attempt to use it there is obviously no braking power what so ever. I've tried it unloaded and today with my 43' car trailer with a single Toyota SUV on it. At 2500 rpm's I'm getting no braking assistance.

My friend took me for a short ride in his 95 this afternoon, and even unloaded in his truck you can definitely feel when the valve closes and starts braking.

Any idea's or suggestions on what to do? Should I have ran the hot to the switch instead of the ground?
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Old 11-30-2013, 05:43 AM
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You should get an aftermarket exhaust brake which is designed to not blow out your seals.

Anyways, if you want to activate your ebpv, run a hot wire to the switch. Run a wire from the other pole of the switch to the colored wire on the actuator. This will allow it to function normally, as well as on demand.
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Old 11-30-2013, 05:54 AM
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You need a ground to the black with the purple strip here is a wiring diagram I did for mine i hooked. A. Little more complicated than what you are trying to do. DIY exhaust brake?
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Old 11-30-2013, 06:07 AM
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Quote:
Originally Posted by delta99 View Post
You should get an aftermarket exhaust brake which is designed to not blow out your seals.

Anyways, if you want to activate your ebpv, run a hot wire to the switch. Run a wire from the other pole of the switch to the colored wire on the actuator. This will allow it to function normally, as well as on demand.
Well when so many people here say its works decently I would like to try it, before I spend $1,000 else where.

Apparently the seal is already blown though because a friend stopped by last night while I was putting on new brakes and he's more knowledgeable about these trucks than I am. The reason mine isn't working is the seals are already blown. I thought my pedestal O-rings were leaking and he corrected me that its the EBPV solenoid. So now to figure out if I can rebuild it/reseal it.
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