Ex bogs down in 5th gear after new injectors, egr delete ect... - Ford Powerstroke Diesel Forum
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  #1  
Old 07-19-2010, 08:42 PM
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Ex bogs down in 5th gear after new injectors, egr delete ect...

I posted in the problems section but no replies, so I will try here.

I finally got done all the work done on my Ex today, RCD 90hp injectors, sinster egr delete, 6.4 banjo bolts, fuel regulator spring upgrade and cleaned the turbo.

After I got all of it done it bogs down and vibrates/shakes from 50 to 60mph while in 5th gear. I have tried all the tunes from RCD and stock, it still acts the same.

Any ideas?
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  #2  
Old 07-20-2010, 03:21 AM
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Where is the shake ? steering wheel ? driver seat ?
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Old 07-20-2010, 06:33 PM
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I think the shake comes from the trans or motor as it bogs down.
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Old 07-20-2010, 08:49 PM
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Could be starving for fuel maybe.....running 90 hp injectors with a week pump?
Do you have a fuel pressure gauge?

Is this at WOT?

Last edited by alwil; 07-20-2010 at 08:55 PM.
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  #5  
Old 07-20-2010, 09:11 PM
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I have lots of power at WOT its only in 5th gear 50mph to 60mph acceleration, if I really step on it to the point it downshifts there is no problem at those speeds.

I have taken it out again and got cyl #3 injector circuit low code and she does smoke really good when I get on it hard but no smoke when I drive easy to moderate (but that could be in the tune).

I was at first thinking it was the turbo needing to be put thru a re-learn but could the injector be staying open and dumping fuel? (just thinking out loud here).
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  #6  
Old 07-21-2010, 05:59 PM
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So after some digging i found that when I put the turbo back in it unplugged the #3 injector plug! Put it back together and boom, no problems at all. I now have one fast Ex that blows minimal smoke when I get on it hard!
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Old 07-21-2010, 10:14 PM
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Glad it was a simple fix.....always nice to see.
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  #8  
Old 07-21-2010, 10:18 PM
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Thanks for the help. Did you guys get that nasty dump of rain last night/early this morning? We got 2" in less than 40min!!!
I am really happy with the tunes from RCD so far, I will be getting a few from Innovative soon to compare and get a strictly econo tune (for when the wife is driving).
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Old 07-21-2010, 10:26 PM
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No we didnt get anything at all here but my GF got quite a bit in Shaunavon.
We have had more rain this summer than we got in the last two years combined lol I am sick of it already.

You cant go wrong with innivative tunes you will like them.
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  #10  
Old 07-23-2010, 06:59 PM
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tuckman, what size tires are you running? I want to step up to 35s but want to know how it will effect power and mpg. Sorry not trying to thread jack.
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