Exhaust back pressure valve need good opinions! - Ford Powerstroke Diesel Forum
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  #1  
Old 12-06-2010, 08:49 PM
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Exhaust back pressure valve need good opinions!

got my truck a couple weeks ago 97 1 ton. in the mornings the exhaust valve opens and closes going down the road for quicker warm up. i let the truck run for 15-30 minutes before leaving the house. read on a thread from tyler(new 7.3 guys read this) that this is normal (alot of guys agreed). but it is driving mee freakin nuts!!!!!! i heard u can unplug it. my buddy has it wired open with safety tie wire and he has no problems also read that other guys have gutted it. i want that thing open all the time. bad idea? why?whats the best way to do it? thanks guys this is my first powerstroke so i'm learning.
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Old 12-06-2010, 08:54 PM
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it helps your truck warm.
it makes your exhaust louder if you gut it

if it gets cold i wouldnt reccomend it

mines hanging open a good bit until it warms up everymorning, major powerloss
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Old 12-06-2010, 09:01 PM
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I never could tell it made a big difference in warmup time. It shouldn't be shutting going down the road...that could get you hurt.
If your not gonna remove the turbo, I'd unplug it. If you remove the turbo, then you could gut the pedistol and remove the flap from the housing.
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Old 12-06-2010, 10:49 PM
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if you're gonna remove the turbo for something(aka leaky uppipes or anything) then do it, did mine and its the best thing i did, my exhaust sounds beautiful now ha.
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Old 12-07-2010, 06:22 AM
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Quote:
Originally Posted by CHUCK View Post
I never could tell it made a big difference in warmup time. It shouldn't be shutting going down the road...that could get you hurt.
If your not gonna remove the turbo, I'd unplug it. If you remove the turbo, then you could gut the pedistol and remove the flap from the housing.
I agree with you for the most part. However, its not uncommon for the valve to shut while driving. It happened on my SD, and it happens on my OBS too. I finally unplugged it on both trucks because I got tired of it closing while I was driving. It seems to make the truck warm up just ever so slightly faster, but not really enough of a difference to worry about.
To the OP, unplug it and wire it on a switch, that way you can close it when YOU want.
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Old 12-07-2010, 07:21 AM
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Right, you can unplug it, gut it, or wire it manually. Some guys even use it as an engine brake.

Quote:
Originally Posted by Dietoremain View Post
if you're gonna remove the turbo for something(aka leaky uppipes or anything) then do it, did mine and its the best thing i did, my exhaust sounds beautiful now ha.
Remember, he lives in CA, you live in OH. (Considering it actually helps warm up the motor -- over which there appears to be some debate.)
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Old 12-08-2010, 08:33 PM
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THANKS BOYS!!!!! I appreciate the advice. It's gonna have to wait for a bit. Doing rear brakes tomorrow night, and just bought a plow for it, and gotta get it put on. been snowing for almost a week and supposed to keep going till next friday. gotta get the driveway cleaned up. The wife gets stuck. HAHA, poor girl. Tried to get her a nice F150, 4 door,a cap or bed cover..... a grocery getter. But she would'nt have it. So if mama ain't happy, ain't nobody happy.
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  #8  
Old 12-09-2010, 08:54 PM
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What tells this thing when to close? There's been only a couple of times mine would do anything on my sd. And when it was 29 degrees the other day, it would have been nice for it to kick in and help warm the truck up. It takes forever for my truck to get hot. don't mean to hijack.
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Old 12-10-2010, 02:00 AM
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Mines been unplugged for 5years. No problems here.
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  #10  
Old 12-10-2010, 03:47 AM
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I unplugged mine and it still would engage while driving, (oil was getting bleeding through the seals to actuate the piston) gutted it now and love it, no problems here and its been in the teens
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