04.5 reflash?

[thames1948]

Has anyone had the reflash done and really gained any mpg's? Has anyone had it done and sorry that the did it, as in run worse, or even worse mpg's? I am thinking of telling the dealer that I want it done even though they say I don't need it. The reason I ask is, they said once it is reflashed it can't be undone. I have about 2500 miles on truck and the dealer said everything ck's out fine even though mpg's are in the 12's most of the time. I just wonder if there is a down side to the reflash?

 

[swexlin]

What is the build date on your truck? It seems to be mainly Jan 2004 trucks to which the TSB applies. It is applicable to mine, but I am not having it done, as I have none of the symptoms.



I don't think this reflash has anything to do with MPG improvements.



Edit: I meant Jan 04.

 

[klenger]

I had mine done. They asked me if I had any of the symptoms, and I just said "yes". How can they argue with about it? I don't think that my milage is any higher, but it certainly didn't hurt anything. I was more concerned about the fix for the reported flat spot between 1500 and 2500 RPM for towing. I don't think you have anything to loose.



Here's the TSB if anyone wants to read it.



#ad

 

[thames1948]

thanks for the replies, and the build date is 1/04 on my truck.

 

[Apence]

Well I had the reflash done on mine. I took it in and they reflashed it and it ran exactly the same as before I went in there, however when I would start it after sitting all night it would blow alot of white smoke and idle rough no matter what temperature out side. So i took it back and they kept it all night to see for themselves and said they had to reflash it again. well now the cold start issue is fixed but i have a major loss in power which was noticable as soon as I pulled off the lot and a nocking noise at idle that wasnt there before (sounds like bad valve cladder in one valve or something). So its going to the dealer in phoenix where i bought it on monday. oh and no change in mpg before or after any of the reflashes.

 

[RobertBolinger]

Mine runs better-especially when cold. MPG is the same. My build date was 1/8 I think. I have 6800 miles now. I recommend it because it fixes a known problem that won't fix itself...

 

[schlota]

Had mine flashed because of a flat spot between 2000 and 2200rpms. After the flash it developed a surge from 1500rpms on up. Took it back to dealership, cummins techs were on hand for 2 days. They did some adjustments, and told me to use a fuel additive. The truck now blows white smoke @2800 to 3100rpms. going back this week. If yours is not broke do not try to fix it, it could get worse!

 

[Apence]

Yeah I agree schlota, looks like we had about the same luck with our reflashes

 

[ceaman]

My mileage sucks too... the reflash makes no difference.

I got the surge on mine after reflash also... .



DODGE... ..... Buy this truck back!

 

[Apence]

Well after taking it in twice at local dealer for reflash i took it to the dealer i bought it from 150 miles away and they called today and said there seems to be a bad injector so they need it tommorow for more testing

 

[schlota]

Originally posted by Apence

Well after taking it in twice at local dealer for reflash i took it to the dealer i bought it from 150 miles away and they called today and said there seems to be a bad injector so they need it tommorow for more testing

After taking My truck back for the 3rd time. It was discovered to have a bad injector. The #3 injector was only putting up 60-80%. After changing out #3, the surging went away and the truck runs smooth now. Very pleased. This was a hard diagnostic, because the one day I took it in to get looked @, it would not surge for anything. The tech said that injectors would do that some time.

Like I say, Very pleased with the truck now!! Runs great adn getting 17mpg. 2100miles on truck.



2004 325/600 6-spd 4x4 quad long bed. engine build date 1-19-04

 

[Apence]

yeah they said mine is injector #6 and am waiting 2 weeks for them to get it