That's bad to hear. I don't plan on ever going to a Duramax. Just don't like aluminum-head, electronic controlled diesels.
I know the 6.5 is electronic control, but it can be dealt with and even reverted to mechanical if necessary.
I know; bad form to quote my own post. But since a few folks seem to have misconstrued my statements as denigrating the Dmax, allow me to clarify my position.
For the average person who is thinking about buying his first diesel truck (let's say used and sub-$25K), my personal recommendation would be to find a fairly low mileage Cummins truck, 24V but not an early 24V. My second recommendation would probably be a fairly low mileage 7.3 PSD although I really, really hate to recommend any Ford. And to clarify that, I am not in any way a Ford fan. The Dmax is probably a better engine. But PSDs are dirt common, the 7.3 has a pretty good reputation, and both parts and mechanics who are familiar with them abound. I expect that this hypothetical average buyer is looking to drive the truck a reasonable number of miles, use it for daily driving and hauling reasonable loads, and then sell or trade it before it starts developing too many problems.
The Dmax is probably a great candidate for that as well. In fact, I have a very favorable opinion of Isuzus in general.
But the foregoing does not describe me. I didn't accidentally stumble into a discussion about the demise of the former Heath Diesel Service, in the 6.5 Performance section, to ask what diesel I should buy. I already have several diesel trucks, generators, tractors and engines. I like mechanical diesels and have no problem tinkering with them.
I did buy another diesel truck recently, and it has a 6.5 TD in it. I was looking for something in the $7K and under range. I found a few 24V Cummins trucks in that range; in fact I could have bought an '01 Dodge 3500 flatbed, manual transmission, 24V truck with reasonable miles for $6K. That truck did sell, but not before I had ample opportunity to buy it. But there's that whole computer control issue.
I wanted a 12V. I found a few. One complete, obvious scam, a few thoroughly worn out trucks with all sorts of issues (especially in the electronics btw), and a couple of trucks that looked to be great candidates but sold before I had a chance to go look at them.
I eventually decided I wanted a C3500HD with the 6.5 and NV4500. They are simple, cheap to work on, have decent components, are (unlike any light truck including the Dodges that came so equipped) very well suited for the weight and power of a Cummins 6BT or even a 53 series Detroit, and are not difficult to find in my price range.
Find one I did, and it runs and drives well. My plan is to stay with the 6.5 until it needs serious work, then swap in a 6BT that I already have in a truck I no longer drive.
If I wanted to spend what a modern diesel truck costs, I would instead buy a 453T, couple it with some kind of Roadranger manual trans, and look around for just the right old truck to drop it into. Perhaps another C3500HD, unless something more interesting presented itself.
Although I do have that '67 K20...
