Possibly responsible for your sluggish power - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 33 (permalink) Old 02-19-2008, 01:23 AM Thread Starter
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Exclamation Possibly responsible for your sluggish power

I thought I would do a little write-up for people to look at regarding a loss of power/funny noises coming out of the exhaust.

The 7.3L came equipped with an Exhaust Back Pressure Valve (EBPV). The EBPV was equipped to provide quicker warm up times, and to keep the engine warm in colder climates.

The way it works is fairly simple. The PCM opens and closes the EBPV following certain preset parameters. Many times, the operation of the EBPV is normal, but the loss of power can be an annoyance. Many people have unplugged or gutted the EBPV, and have no complaints whatsoever. A simple way to test your EBPV is to simply unplug it. If the operation of the EBPV is causing your power loss, when you unplug it, it won't close, and your exhaust will flow freely.

Just thought this might help people during the colder times of the year.


ON EDIT: Here is a pic of where the plug is. On the late-99 & up super duty, its fairly easy to reach in from the passenger side and unplug it. Just flip up the metal clip, and unplug.
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post #2 of 33 (permalink) Old 02-19-2008, 03:47 AM
 
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Well put!
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post #3 of 33 (permalink) Old 02-19-2008, 05:29 AM
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wow sure took long enof for one of us to say that i wish some people would do a little thred serching insted of posting the same old ????????'s thanks to blueovltrk

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post #4 of 33 (permalink) Old 02-19-2008, 11:12 PM Thread Starter
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I'm kinda hoping someone will vote for it as a sticky
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post #5 of 33 (permalink) Old 02-19-2008, 11:16 PM
is here and there.
 
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ask a moderator for a sticky and if you could add a photo or description where the EBPV is located.

Life changes, so roll with it, not against it.
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post #6 of 33 (permalink) Old 02-19-2008, 11:33 PM Thread Starter
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Hey russ, can I get a sticky now?
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post #7 of 33 (permalink) Old 02-19-2008, 11:36 PM
is here and there.
 
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Originally Posted by bluovaltruk01
Hey russ, can I get a sticky now?
I'm powerless. no longer a mod.

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post #8 of 33 (permalink) Old 02-19-2008, 11:42 PM Thread Starter
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Well crap...I'm filing an appeal. Russ for Mod! did you not want to do it anymore?
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post #9 of 33 (permalink) Old 02-20-2008, 01:30 AM
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I vote for a sticky.....anything like this that is hashed over time and again NEEDS a sticky!

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post #10 of 33 (permalink) Old 02-20-2008, 01:41 AM
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That is some good info, for thoses of us that are somewhat new the PSD's - Ol Red
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