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2004 Chev Duramax / Chev 6 lt


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#1 Alberta Bolens OFFLINE  

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Posted July 07, 2016 - 11:33 PM

There is an estate auction coming up in town this weekend.

 

 There is a 2004 Gmc Duramax 2500 ext cab leather loaded included 5th wh hitch and tool box 135000, km which is about 85,000 miles.  Looks from photos to be mint.

 

I now own a 2006 chev 6 lt 2500 crew cab.  Loaded leather the works.  235000 km or about 150,000 miles.  Its in great condition.

 

From what I hear the 2004 duramax is one of chev better years.  

Any idea of fuel economy of the duramax?  Empty and pulling?

 

I do pull 27 ft 5th wheel the 6 lt handles it nicely.  The duramax would have extra power for that.

 

Duramax - Ext cab - low milage  Kids are grown up so ext cab be ok.

 

6 LT - Crew cab - little bit higher milage.

 

Guess time will tell how much it goes for.

 

 



#2 crittersf1 OFFLINE  

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Posted July 08, 2016 - 07:36 AM

Those are called "Dura-Slacks" around here



#3 Talntedmrgreen OFFLINE  

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Posted July 08, 2016 - 07:50 AM

The biggest concern with a 2004 will be injectors.  Since this is a low mileage truck, it may likely not have reached a point where injector replacement has been necessary.  It was a factory replacement type of thing, so it's also possible a caring owner had that taken care of.  Ask anyone who may know, and request the service records.  This would be a GM service, and recorded by VIN#.

Do you know which model engine it has (or what the VIN # is)?  The LB7 was the first generation Duramax ('01-04), and most prone to the injector issue, and generally considered the least desirable.  Respectable, but they simply improved often and for the better over time.  The LLY was introduced in 2004, and is generally considered more reliable from an injector standpoint. It would give a couple more mpg also.  Neither engine is a slouch.  

 

Check the 8th digit of the VIN code to determine the engine.  1 is an LB7, 2 is an LLY.  

 

I have had a couple 6 liters, both in Sierra's and Yukon's, and loved them.  I will never consider one again after buying a Duramax.  You will be blown away.  Towing my trailer, I would get around 8-10mpg with my 6L.  Hills always slowed me down, with the upshifts, etc.  They were working.

 

With the Duramax, I tow a 33' trailer and get around 15-16mpg...don't judge, but I comfortably drive 75-80 now instead of the 65 I used to do with my 6L vehicles.  I do have a 6 speed, while the 2004 you are looking at has a 5 speed.  Normal highway driving, if I can keep it around 70-75, I am typically around 20mpg.

 

Diesel is also cheaper where I live...last year sometimes $0.50/gallon less than gas.

 

 

 

Those are called "Dura-Slacks" around here

 

Hilarious!  and unnecessary for the OPs question.  Thanks for the help.


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#4 crittersf1 OFFLINE  

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Posted July 08, 2016 - 07:56 AM

The original injectors weren't designed for LSD or the ULSD. With the mileage that it has that problem should have already been addressed. The ones I worked on the injectors would eat themselves by 30,000 miles



#5 olds45512 ONLINE  

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Posted July 08, 2016 - 09:22 AM

I'm in the market to upgrade my GMC 1500 with a 5.3 to a 3/4 ton, from the reading I've done the 6.0 gets an average of 10.5mpg and the diesel gets a little over 16.

Edited by olds45512, July 08, 2016 - 09:23 AM.


#6 Cat385B ONLINE  

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Posted July 08, 2016 - 12:19 PM

The lifetime average mpg of my '04 2500 crew w/ the 6.0 is 14.5. It has 95,000 on it, and has been the most problem free vehicle I have ever owned. It has never been to the shop. It has the original brakes yet.

It's not leaving until I replace it with a diesel.

Edited by Cat385B, July 08, 2016 - 12:20 PM.


#7 IHCubGuy OFFLINE  

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Posted July 08, 2016 - 05:01 PM

I own an 05 2500HD with a Duramax.  I bought it from my dad in 2014 when he upgraded to a new 2015 model Duramax.  It has been virtually trouble free its entire life.  It has had the injectors replaced but that was not a big deal when it needed them.  It has over 135000 miles on it and I plan to run it till it falls apart.  I don't anticipate that will be anytime soon though.  The fuel mileage has always been excellent.  We hauled a 25ft gooseneck to ohio and back a few times for Red Power roundups with 2 tractors on and it averaged 15 mpg loaded.  The same towing mom and dads 34ft fifth wheel camper back and forth to indiana and once to wisconsin.  On trips that I have taken recently it has averaged 24 mpg not towing.  It has excellent power and will pull hills in higher gears without winding out far at all.  I have nothing but good things to say about them.  When it does eventually need work we have a young guy that lives by mom and dad that specializes in them and he KNOWS what he's doing to boot.  Has a good reputation around here on them and people bring them to him when others can't figure things out.  Good luck with it.  OH and I have inly ever heard good things on the 6.0 GM gas.  Good engines too.



#8 Alberta Bolens OFFLINE  

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Posted July 08, 2016 - 05:58 PM

There is an estate auction coming up in town this weekend.

 

 There is a 2004 Gmc Duramax 2500 ext cab leather loaded included 5th wh hitch and tool box 135000, km which is about 85,000 miles.  Looks from photos to be mint.

 

I now own a 2006 chev 6 lt 2500 crew cab.  Loaded leather the works.  235000 km or about 150,000 miles.  Its in great condition.

 

From what I hear the 2004 duramax is one of chev better years.  

Any idea of fuel economy of the duramax?  Empty and pulling?

 

I do pull 27 ft 5th wheel the 6 lt handles it nicely.  The duramax would have extra power for that.

 

Duramax - Ext cab - low milage  Kids are grown up so ext cab be ok.

 

6 LT - Crew cab - little bit higher milage.

 

Guess time will tell how much it goes for.

I really like the 6 lt that I have runs great and has had no problems.  All around good truck.  I'm only interested in this duramax if I can get it  minimal cost $$ to upgrade. to deisel. I would think both trucks would be worth about the same maybe the duramax 2 or 3 grand more.  Figure it would be cheap way into a diesel.  Although I not sure I want to give up the crew cab for an ext cab.



#9 Alberta Bolens OFFLINE  

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Posted July 09, 2016 - 09:16 PM

It sold for $23,300.  It was absolutely in mint condition.  To rich my pocket.  Sure it was worth it when you look at the price of a new one.


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