7.3 ebpv brake - Ford Powerstroke Diesel Forum
 
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post #1 of 9 Old 07-27-2013, 06:47 PM Thread Starter
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7.3 ebpv brake

I have reacently wired up the ebpv to work as a exhaust brake, and yes I have the tc lockup mod, and I can tell the ebpv is closing because of the whistle but it is not slowing the truck down. I have had the connector disconnected for about a month. I noticed that the wires had no insulator left on them by the connector so I taped them up. Any ideas?
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post #2 of 9 Old 07-27-2013, 08:50 PM
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What RPM are you at when you are trying to slow down?

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post #3 of 9 Old 07-27-2013, 08:51 PM
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I have the bd-brakeloc which uses the ebpv. I find that for the ebpv to be effective, I need to have OD locked out and have some rpms built up. Works best for me above 1500 rpms and works very well at 2000 rpms. I like the brakeloc as it locks and unlocks the TC based on speed so you need not worry about clutch slippage as it unlocks the TC and releases the ebpv at a set speed, mine is set for 28-30mph or about 1200 rpms. I don't think its a good idea to have the TC locked at rpms lower than 1200, I'm told it will cause excessive clutch slippage and heat in the trans. The brakeloc also opens / closes the ebpv based on speed and throttle position.

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post #4 of 9 Old 07-30-2013, 02:01 AM Thread Starter
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Usually it is at highway rpm's
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post #5 of 9 Old 07-30-2013, 06:51 AM
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with OD off?

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post #6 of 9 Old 07-31-2013, 01:56 AM Thread Starter
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Ya tried that and nothing happens
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post #7 of 9 Old 07-31-2013, 06:18 AM
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As long as your sure the ebpv is closing, then I dunno. Mine works pretty well. The ebpv can only generate about 28psi of back pressure. True exhaust brakes are generally set to max out at 40psi. So yea, the ebpv when used as a brake is only 70% as affective as a BD or PacBrake but it does work well for me. Since you verified your TC switch and wiring to the epbv are all working and those two components are doing what you tell them then I don't know

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post #8 of 9 Old 07-31-2013, 06:40 AM
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I have mine wired up to work as a brake without the tc lock because the pcm already does this above 40 in od and 35 without od. Mine works very well for what it is, you can feel it distinctly slowing it down. This is without using any brakes because I have mine wired to shut off when I hit the brake pedal. Oh, if you hit the brake pedal, the pcm will unlock the tc as well.

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post #9 of 9 Old 07-31-2013, 08:10 AM Thread Starter
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Could it not be closing all the way form gunk in it? That's what it seems like.
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