Difference 2004 2004.5

[dragan54]

Title says it all. What was changed on the engines from 2004 to 2004. 5? Rason I am asking I am wanting to put one of the power boosters on my truckand can get one for a really good price, but it is for a 2004. 5 and I have a 2004



Thanks

 

[JEstes]

The box probably won't work. The 2004. 5+ trucks have the injectors fire 3 times as opposed to 2 for the '03-'04 models. That was done for EPA stuff. The newer models also have an electronically controlled wastegate, whereas you and I have a mechanically controlled one. There were some head modifications, in tank transfer pump, ect. Plus the wiring harness is different, I believe.

 

[dragan54]

Thank you your very informative answer and now I don't feel as bad fot not getting a 04. 5



Thanks

 

[OT-OF-HERE!!]

04 vs 04.5,.. what's the difference

I'm sure I'll forget some things but someone else will pick up the slack.



Larger Intercooler.

Better pistons.

Better valves.

Bigger turbo.

3-stg injec event

More Hp.

More Tq.

4" exh from turbo to tip.

Heavier built exh manifold.

I believe the valve seats are different too. More heat resistant.



I just recalled,. . the TDR magazine,. . I believe the Jan 04 or the Mar 05 edition had the complete blow by blow difference. If someone has that and can help us out.



Tag,. . someone elses turn. But that's most of it.

 

[RMarkey]

MORE, that pretty much sums it up.

That was actually the only strict requirement when I got my truck, it had to be the 04. 5 or I didn't want it, everything else was second. In hindsight, it probably didn't matter, I'd a' bombed it too!

 

[100 Proof]

Anyone ever stick one of those larger '04. 5+ turbos on an earlier 3rd gen? If so, what was the result?



TIA,

100 Proof

 

[WoodChuck]

I don't know that the 04. 5 intercooler was larger but I do know it has plastic end tanks.

 

[OT-OF-HERE!!]

04.5 Intercoolers

I don't know that the 04. 5 intercooler was larger but I do know it has plastic end tanks.

,... ..... they are bigger (actually DCX calls it "increased capacity,") and they DO have metal end caps. The plastic caps came with the '05s.

 

[Cattletrkr]

Different exh manifolds didn't come until after the '04. 5's. not sure when exactly but mine was still the "old style" until I replaced it.

 

[OT-OF-HERE!!]

04.5 Exh Manifolds

I have an 04. 5 with a build date of 3/04 and it has the NEW Exh Manifold. The Exh Manifold was one of the items upgraded with the 04. 5 model.

 

[Cattletrkr]

I must have gotten a hold over then. The truck was built Jan 04, don't know about the engine off hand.

See the differences here.

https://www.turbodieselregister.com...3-2007/187145-cracked-exhaust-manifold-2.html