CoolumConst

I have noticed that my engine sounds different then other cummins. It has more of a rattle type sound. Others have a nice deep rummble. I have not been able to figure out why it sounds different or if it is even a problem. Has anyone had any experience with this?

vzdude

Others being other 3rd gens? Do you have any codes?

CoolumConst

Yea other 04.5s and up, no codes and it does run pretty good. I have run cleaners, did not help. Syn. oil helped a little.

vzdude

I know my 03 SO sounds a lot quieter than my buddy's 05 HO , but was just making sure you were comparing apples to apples! There have been some posts about noisey injectors, CP3 knock type noise, converter bolts coming loose, flywheels cracked, high pressure line retainers breaking, tons of things that will cause odd noises. Probably need to crawl around it some to get a better idea of where your particular noise is coming from.

NCYZ1V

My buddy and i have the same truck same milage...he got his new i got mine used. his is a lot quieter.....we found out that his has 800hr on the meter and mine has 1800 on the hr meter!both have about 30k miles on them.

I read somewhare to change all the injectors...but hey it does not bother me that much...

apples to apples.....

Is it your first dodge it could just be you! no hard fellings just pretty much what they said to me!

CoolumConst

We have an two 04.5s an 05 and a 06 and just got rid of an 04. I have asked the dealer but they said nothing is wrong. It is most likely the injectors or the cp3. I was just wondering if anyone has changed injectors, cp3, etc and if it made a difference. Thanks for all the info.