2008 gmc dually info

Paul Clancy wrote:
In your reading search cp4 versus cp3. Actually the duramax lmm engine is very reliable (2007.5 - 2010) and had few if any dpf issues. Far more pain with the ram and fords in that first year. I'd still have a knowledgeable diesel mech look over any used truck - pull codes - check for leaks etc. Tranny line leaks are one of the only common issues in that year.

Can you say cp3 and reliable at the same time?

That should be a great truck. I owned an '07.5 which is the same truck. I never had any trouble with it except for the leaking trans. cooler lines that were fixed under warranty. That was the only thing ever done to the truck in the nearly 40,000 miles I used it for heavy towing and hauling. I sold it because I didn't need it any more.
I don't know about the price but you can't compare it to a 6.0 Ford for resale. Some dealers won't even take those tings in trade because they're so hard to get rid of.

Trackrig wrote:
I think it's a little high. Got my 2005 Ford CC diesel 4X4 with 11,000 miles on it for $25K from a dealer. Have you called around to the dealers to see what they have as comparisons?

Bill

Unfortunately...a bad comparison...the 2004 thru 2007 6.0 diesel Fords have the lowest resale value of any of the Big Three diesels...some might think you actually paid too much...

Regards

jerem0621 wrote:
I think that's one of the first years for the DPF...if not the first...

IMHO... I would steer away from any of the big three first year DPF trucks.

I recommend going for a truck a little newer and getting the DEF and DPF... the MPG is better and the manufacturers figured out the new emissions better.

Just google 2008 Duramax DPF and read all the users wanting to get rid of the DPF on these trucks.

Another option is to go with a little older truck...2006 or 2007...considered to be one of the most desirable Duramax years.

Thanks, and again....JMHO.


Jeremiah

I purchased an 07.5' Chevy 3500 Dually in LTZ trim, it was called an 07.5 model and it was the first with DPF. Purchased in July of 07'.... Believe that is when GM started using DPF...DEF not until 2010..The Chevy was a great truck, I towed a 5er loaded to approx 15.5K....regens are what they are...

2007 was the end of the classic body in the GMC and final run of non emission duramax. my father has one in dually form with only 20k miles on it, as he has told me i would have to pry it out of his dead cold hands.

That's a great truck, see my sig. I purchased my 08 two years ago with 104000 miles for $29000. The only major recall I've seen and had my selling dealer fix is the transmission cooler lines. They used plastic ends when built and can crack and leak at the cooler. The way to check is look and feel directly under the front air dam on the left middlish area. Find the line and feel for leaking fluid. If leaking have the lines replaced.

I have only put 20000 miles on my truck and its been solid. Zero issues and love this truck. Try to get them down in price some. Check Autotrader and Cars.com.

This truck truck does not use DEF but runs a regen cycle every 500 to 800 miles depending on your driving. I'm averaging 16 mpg bobtailed and 8.5 to 9 towing my 42' fifth wheel. You'll notice a drop in fuel economy when the regen cycle is running. I have a Scan Gauge II on my truck and can tell when the regen is in progress. You don't want to shut the truck off when its running the regen. The turbo pressure will be low when it running the regen and egt temps high. Run the truck hard and it will take care of you.

It's an awesome truck, reliable and powerful. I'd snatch it up because they are hard to find in my area, at least.

In your reading search cp4 versus cp3. Actually the duramax lmm engine is very reliable (2007.5 - 2010) and had few if any dpf issues. Far more pain with the ram and fords in that first year. I'd still have a knowledgeable diesel mech look over any used truck - pull codes - check for leaks etc. Tranny line leaks are one of the only common issues in that year.

I think that's one of the first years for the DPF...if not the first...

IMHO... I would steer away from any of the big three first year DPF trucks.

I recommend going for a truck a little newer and getting the DEF and DPF... the MPG is better and the manufacturers figured out the new emissions better.

Just google 2008 Duramax DPF and read all the users wanting to get rid of the DPF on these trucks.

Another option is to go with a little older truck...2006 or 2007...considered to be one of the most desirable Duramax years.

Thanks, and again....JMHO.

Jeremiah

Where else should I check ? Blue book says 34k for the truck, not sure if I put all the correct options tho.

No haven't called around just been looking on craiglist. Hard to find something under 100k miles. People are still a asking like 28k for a truck with a 130k miles.