Just checking in....
Well, this is a good thread for me. I have a 2002 GMC 2500 HD Crewcab with the Duramax and Allison. I am also running a VanAaken module at 110 hp. I’m at about 190,000 miles. I’m noticing a slight decrease in performance, a bit more smoke on acceleration and there is a bit of a rise in my transmission temperatures in the last 30,000 miles. The fuel economy isn't bad because I got nearly 21 mpg last weekend on a run from Sandy, Oregon to Chico, California. Given the mileage I'm beginning to wonder if a set of injectors and a transmission R&R are in order. I have not run a check on any engine codes yet. Does anyone have a suggestion for a tester that I can buy to check the engine codes? Is there a preferred service manual? I'm not afraid to take on the injector swap so I'll just keep listening here for now. I look forward to hearing what any of you have to share.
1983 Chevrolet, K20, 6.5 with Banks turbo, other goodies and an NV4500<BR>1993 Chevrolet K30 6.5 Turbo, Phaser, cooling mods, complete rebuild.<BR>2002 GMC 2500 Crew Cab, short box, Duramax, Allison and VanAaken computer. 256,000 miles and is just now in need of the first major R&R. It is time to do the injectors.