Engine/Transmission (1998.5 - 2002) noise difference

[sgoeing]

Why are the new trucks so much quieter than my 99? All you can hear on the new ones is the turbo; no chatter at all. What's so different?







I like some noise, especially the turbo and the exhaust, but I could do without some of the chatter. Why is it so different?

 

[FourBarR]

new trucks 2003 and up have common rail injection. and computer controlled injectors. the vp44 on older trucks produces 25000plus pounds pressure which opens the injector. the cp4 pump pressure goes to a common rail (high pressure pipe) the injectors are opened by computer and allowes a pre injection of a small amount of fuel before the main injection this reduces the diesel knock that you hear. hope this helps.

 

[sgoeing]

so single pipe to each injector in mine then?





has anyone done a head/computer swap with a newer one?

 

[Forrest Nearing]

so single pipe to each injector in mine then?





has anyone done a head/computer swap with a newer one?

not that simple... swap the whole engine

 

[sgoeing]

so we're really just SOL except for sound deadening the hood, inner fenders and firewall.



I can accept that, I just wanted to know if there was a major mod that would help 'some'. Like I said, some noise is nice, but mine is REALLY loud.

 

[Forrest Nearing]

yeah, you've got the loudest of the loud!!! 2nd gen 24v trucks rattle like crazy! I think they sound awesome, but they are loud...



Forrest

 

[SHobbs]

B100 took some of the rattle out of mine. Sounds like a 1st gen at times.

 

[RMecum]

what's B100?

 

[sgoeing]

what's B100?

full biodiesel, no petro.

 

[Jefff929]

near B50 mine gets quieter, if you can call it that.

 

[SHobbs]

what's B100?

I have been running soybean oil for over a year. As far as bio you will see anything from a 5% to 99% mix of plant oils, for example B50= 50/50 mix of bio and #2. B100 is all plant oil and no #2. There is a forum here dedicated to alternative fuels with alot of information on bio diesel.