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I've not found the mileage stored into the ECM anywhere but it is stored in the BCM and in the air bag module if it has one.

Well all I can tell you is when GM flashes with the Tech II and when we have done the same here both with the Tech II and our own stuff the CVN's match just fine. Could not tell you what McSwain is doing wrong.

Running a stock LLY VVT above 30 psi is pretty much a waste of time. The drive pressure goes to hell pretty much at 29 psi boost at sea level. On #2 only that's enough to support ~ 500RwHp

Guys, I've been saying this for years but everyone has been saying NO NO NO. Problem is that the answer is YES YES YES. GM can read the CVN from all Duramax engine controllers. They can also read other information that will let them know an aftermarket calibration has been installed. Sorry but...

One needs to be careful when you talk about air and boost pressure. Remember that pressure is the resistance to flow through a fixed orifice or in this case an engine. So if the engine was not changed or modified the orifice size has remained the same and no turbo change is going to put more air...

Yes, The Co-pilot helps the transmission shift quicker so the TCM see it and makes it's adjustment based on what it see's. I would turn the co-pilot off and start by making several 1/4 throttle runs up through the gears. If it shifts OK at that level then move to 1/2 throttle. Repeat the process...

I do not believe you have and Allison in your application. It is most likely a 4L80E. If that is the case then no you cannot add 5th gear within the transmission. You could add an aftermarket overdrive though.

Check your filters, both the fuel filter and transmission spin-on filter. If you've hurt the transmission it will set a code most of the time unless you lift the throttlr\e when you feel it slip.

I do my spin on at every 3rd oil change. I change the engine oil between 3500 and 4500 miles

It seems that the truck with 2 piece shafts tehd to do it more than the one piece trucks. How many of you have the 2 piece rear drive shaft?

There is nothing wrong with the cooler that Mike sells, but, it is also no better than the DIY cooler Renodmax made up. It a decision of what works better for you from the dollars and cents standpoint.

The truth is the cooler was purchased at Earl's Supply as an off the shelf Setrab unit. The cooler was bought by Mike. He brought it to me and I made the install kit and had Jiffy-tite make the custom fittings for the cooler. We set Mike up with our suppliers and packaging companies. Mike was...

Rob is correct, the filter lock is not needed when using the factory deep pan and the factory deep filter. Most aftermarket pans do not fit the filter properly so they can come out so you either fix the pan or install a filter lock to keep it from happening.

What funny is the testing was done right here at my shop by me, not you Pat and not Mike. I design the mounting system and got the fittings made. Then set Mike up with our nut and bolt supplier and box supplier. What more could I do other than box them and ship them for him. Sure is funny how...

Like I said I really doubt they are going bad that fast. My guess would be a faulty connection in one of the wire harness connectors. Each time they unplug and old one and plug in a new that maybe all it needs to move the connection so it works for awhile. Check the connectors over the valve...

I designed and made the Mike L. cooler kit for the 5 speeds. It uses a Setrab cooler and I believe it's part number was 945 but do not remember for sure. It requires a different fitting as the threads in the cooler are different than the stock cooler fittings. The Earl's cooler has the same...

If I remember correctly the deep pan setup uses 2 more quarts that the stock GM setup in the truck. I put one on all my trucks as it's cheap insurance and for the life of me I do not see why GM decided to shorten it for the pickups.

I would be looking for a bad connection as I've seen very few Baro sensors go bad. The new style connectors are not very good that are used in these trucks. Check the two connectors over the valve cover on the driverside for a pushed back pin inside.

That''s the same type mileage I get in my 2006 LBZ towing. What I've noticed in both my 2004 and 2006 is that as the speed goes above 65 mileage drops fast. Some rough numbers for mine are that it drops about 1 mpg for every 5 mph above 65 that you go.

James More than likely it's in the code in the ECM. The program is not correcting the CP3 quick enough when the pressure is falling under heavy loads. Industrial Injection has a modified CP3 that reacts quicker than a stock one or you can look around the net and find the DYI modification for...