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Discussion Starter · #1 ·
Ok, here's the deal...I've got an 04 5.9 CTD. I've been looking to get a programmer and I've found that I'm still rather ignorant as far as the specs of my truck, and what some of the technical lingo means. Now when I look at some of the programmers it asks if I have a common rail system, or whatever, and I really don't know. I think I had a comman rail, but a few months back, my fuel pump went out, and the dealership upgraded me to the in-tank fuel pump conversion. So does that affect which programmer I would use? Also, I recently looked and I have the 325hp engine, and not the 305 that was also out in 04. Does that mean even though my data plate says April 04 for manufacture, that I have an 04.5? And if I do install a programmer, do I need to make any modifications to the tranny, or anything else? I just recently upgraded to 35" tires, and know that my speedometer isn't accurate, where can I get that re-calibrated? Thanks in advance!
 

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The changeover from 04 to 04.5 happened at Christmas 2003. Anything built in the 04 callender year to July was an 04.5. All CTD's from model year 2003 and later are CR's (common rail). Here is something to help you.

89-93 First Gen 12V rotary pump
94-98 Second Gen 12V P-Pump
98.5-02 Second Gen 24V VP44 electronic pump

Common Rails
2003 S.O. Federal Emissions: 250HP/460lb.ft. Available with NV4500 or 47RE
2003 S.O. Calif. Emissions: 235HP/460lb.ft. Available with NV4500 or 47RE
2003 H.O. Federal Emissions: 305HP/555lb.ft. Only available with NV5600
2003.5 The 47RE was replaced by the 48RE automatic transmission and available with the H.O.

2004 S.O. Calif. Emissions: 235HP/460lb.ft. Available with NV4500 or 48RE
2004 H.O. Federal Emissions: 305HP/555lb.ft. Available with either NV5600 or 48RE

2004.5 (50 state legal) 325HP/600lb.ft. Available with either the 48RE or NV5600

2005 (50 state legal) 325HP/610lb.ft. Available with either the 48RE or NV5600

2005.5 The NV5600 replaced with the G56 6spd manual gearbox.

2007 6.7L Cab and Chassis 305HP/610lb.ft with either the Aisin 6spd Automatic or the G56 6spd manual gearbox

2007.5 (50 state legal) 6.7L 350HP/650lb.ft with new 68RFE automatic and 350HP/610lb.ft with G56


Any programmer adding more than 75HP is eventually going to cause you transmission troubles.
 

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Discussion Starter · #3 ·
Thanks for the info Dually!!!
 
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