3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

2003 5.9 cummins with no bottom end

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Old 03-03-2015 | 07:55 AM
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2003 5.9 cummins with no bottom end

My 03 has top end but nothing on the bottom end. i have a smarty tuner and a afe intake on it and it still has no bottom end power can somone help thats knows or that has had this same problem.
Old 03-03-2015 | 12:24 PM
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Sluggish when takeing off
Old 03-03-2015 | 02:04 PM
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How sluggish? Is this your first diesel? Is it just normal turbo lag?
What tune are you running?
Do you have gauges, whats your boost pressure doing?
Old 03-03-2015 | 05:28 PM
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Iv drove my fathers diesel and when u took off from a stop sign it would spin and it was stoke and it hates pulling trailers thats where i realy notice it and its on level nine on my smarty. And my boost is up around 30
Old 03-03-2015 | 08:49 PM
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Is torque management set at stock? That will delay fueling. I set mine at default.
Old 03-04-2015 | 04:29 PM
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I dont remeber it was like this stock and the programmer only helped on the top end not the bottom end
Old 03-05-2015 | 08:22 PM
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Do you have an automatic tranny? If so, it is the slush boxes crappy TC fluid coupling.
Old 03-06-2015 | 08:29 AM
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I'll second on a possible auto tranny issue. A buddy of mine just went through this with his Ram, the auto tranny was starting in second gear. Bad governor solenoid.
Old 03-06-2015 | 09:10 AM
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Originally Posted by Dirtracer55e
Iv drove my fathers diesel and when u took off from a stop sign it would spin and it was stoke and it hates pulling trailers thats where i realy notice it and its on level nine on my smarty. And my boost is up around 30

Lol, it's hard to respond to a post written like this...

- Perhaps take an English course.
- Perhaps set your Smarty to level 11.
Old 03-06-2015 | 06:15 PM
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Originally Posted by StealthDiesel
Lol, it's hard to respond to a post written like this...

- Perhaps take an English course.
- Perhaps set your Smarty to level 11.
My bad i was at work and my smarty only goes to 9
Old 03-06-2015 | 06:17 PM
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My transmission was just rebuilt
Old 03-06-2015 | 09:50 PM
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Originally Posted by StealthDiesel
Lol, it's hard to respond to a post written like this...

- Perhaps take an English course.
- Perhaps set your Smarty to level 11.
Originally Posted by Dirtracer55e
My bad i was at work and my smarty only goes to 9


I do know the Smarty programmer only goes to 9.
I was hoping you would realize that if your truck is near stock, as you mentioned in your 1st post, you should absolutely NOT set your Smarty to level 9.


This is a forum, not a chat room.

Take your time making quality posts with proper spelling, grammar and punctuation and you may get some quality responses.
Old 03-06-2015 | 10:22 PM
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Originally Posted by Dirtracer55e
My transmission was just rebuilt
Stock? What upgrades if any? I would suggest multiple searches and reading.
Old 03-23-2015 | 04:33 PM
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Input output shafts. 1000 horse torgue converter and why shouldnt i put it on level 9
Old 03-24-2015 | 06:39 AM
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03 with smarty on lvl9 and flogging it while towing a trailers??? Holy EGT's batman!!! What is your EGT reading on your gauge? If you not red lining your temps, then you have a fueling problem, of you don't have a fueling problem then you probably already got a couple burnt pistions and are just running on a couple good cylinders...

You do know about the torque management built into the computer right???

Who's converter was installed on your truck? What is the stall speed? If your not completely batcrap crazy (troll posting), I bet you have too little stall built into your converter and can't light the turbo...


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