p.s dont believe your over head ,i am double chiped mine reads 28-30 don't i wish , no trailer 21 hand calculated !not bad for 3500 4x4 dually.

I only have 14K miles on the truck and the fronts are wearing on the outside. mine is a 3500 2wd but I put a 2.5 inch levling kit on the front end and think it may be an alignment. I had the tires rotated at 7500 miles and due again now. This is my first diesel I've ever owned so im a real rookie when it comes to diesel knowledge

Anytime you add a lift kit it is always good to realign the frt end.Because it changes the alignment dimensions when you lift them.so yes it probably is an alignment issue.

All of the new diesels, starting in the 2nd half of 2007, fall under the new emmission requirments set by uncle sam. in a nutshell, the exahust passes through a Diesel Particulate Filter(DPF). After X amount of miles and gallons of fuel burned, an actual flame is ignited in the exahust system and burns off the particulate matter in the DPF, a regen (particulate is basically the black soot in diesel smoke)

Now if for somereason the truck fails to regen, the DPF will become completely clogged and after its all said and done, the truck won't run and you'll wind up getting a ride to the dealer with the help of a wrecker.

The DPF's are industry wide as far as "on highway" diesel engines are concerned. Light, medium, and heavy duty trucks.

from what I've read and herd, the Dodges are having the most problem, and GM is having the least amount of regen issues.

I am in the heavy truck indusrty. What used to be the most sought after engine in my industry, Caterpiller is going to quit building truck engines in 2010 because of the issuse they are having, and the new, stricter standareds the government is enforcing in 2010....

Thank goodness I don't have a need for a diesel truck, what an ongoing maintenance nightmare, and only gonna get more interesting after 2010.

I feel for you fellas that rely on 'em for a living!

damn glad I dont have emmissions on mine I would be in big trouble! 4" pipe runs from the header to the bumper LOL!! forget the cat or muffler! who needs em!!

what year model is your Ronnie?

hate to be the bearer of bad news ronnie but i THINK if it came from the factory with the cat you will need it for inspection as well as muff.

nope, not mine. exempt from emmisions. its a 2001.

Not a cat on our 2nd generation. We have mufflers and resonators. The resonators only job is to eliminate noise or harmonics.

Poorboy, the new trucks have the capacity to remove the DPF and unless they institute new guidelines they do not inspect for them in Texas.
The regeneration of a Cummins happens when a sensor tells the computer that there is an X amount of restriction in the exhaust system. This is the DPF loading up with soot and so there will be a very small amount of diesel injected into the DPF just after the turbocharger that ignites and burns off the soot.

Right now mine (2000) and Ronnies just get the 12.50 inspection. Kick the tires and look at the lights.

I do like the Chevies.

Yes, they build DPF Delete Kits that you can run, and would probably be alright, but it is illegal. If you were ever caught you'd have to pay a fine, but its highly unlikely you'd ever get caught. The only thing I am worried about with running a DPF delete kit on mine is voiding the waranty. Some dealerships care and some don't, just depends on your relationship with the dealership. I need my warranty, I'm skeerd

I didn't know if there was a sensor on the 6.7's or not, my LMM ecm reads milage and fuel used and will regen. I belive it regens between 325 and 450 miles. I'm not sure on the 6.7's, but it takes 3 gallons of fuel to regen an LMM

Ronnie, I was just wandering if you were running a 12v or 24v....if it was a 12v we could do some "fine tuning" on the fuel pump real cheap like...

that word "fuel pump" scares me... i dont even look at it wrong... I stay away from that little jewel.. dont want to have to replace it anytime soon..

the transfer pump that you are worried about and the injestion pump I'm talking about are two totally differnt animals....but yours it too new...

2007 5.9 3/4 ton 4 dr 4x4, 5" straight pipe from turbo back, 6" tip, smarty chip, s&b cold air intake,silencer ring and baffles removed, 2" leveling kit, 35" bfg mt km2's on 17" moto metal wheels...23-24 mpg on hwy and 19-20 pulling 21' boat

And Shayne Ward could Blow My Doors Off With His Duramax!!