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Old 01-29-2011, 06:33 PM   #1
treveiger
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Any Duramax owners out there?

Just wondering how many dmax owners are out there and what year you have.
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Old 01-29-2011, 07:23 PM   #2
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Re: Any Duramax owners out there?

Yes sir, its in my sig. You?
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Old 01-29-2011, 08:49 PM   #3
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Re: Any Duramax owners out there?

My father has a 05 Dmax, im trying to see how many duramax owners are out there on this site because im trying to see if the higher ups will start a section for duramaxes and they said they have to see how much interest there is in it before they consider it.
How do you like your truck overall?
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Old 01-29-2011, 09:38 PM   #4
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Re: Any Duramax owners out there?

great so far
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Old 01-29-2011, 09:46 PM   #5
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Re: Any Duramax owners out there?

my pops owns 2, loves em both.
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Old 01-29-2011, 09:58 PM   #6
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Re: Any Duramax owners out there?

I couldnt believe the power these things have my dad wont ever go back to gas again!
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Old 01-30-2011, 02:24 AM   #7
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Re: Any Duramax owners out there?

04 right here..... love it and will keep it for probably:..........:........................ever
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Old 01-30-2011, 03:05 AM   #8
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Re: Any Duramax owners out there?

Ya my landlord bought his 05 new, it now has 60,000 miles on it and he had no plans on selling it, and had nothing but great things to say about it. There a amazing truck.
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Old 01-30-2011, 11:12 AM   #9
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Re: Any Duramax owners out there?

Once you have towed with one its hard to imagine we used to tow with those under powered big blocks for years
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Old 01-30-2011, 01:15 PM   #10
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Re: Any Duramax owners out there?

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04 right here..... love it and will keep it for probably:..........:........................ever
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Your over on the DF right?
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Old 01-30-2011, 01:23 PM   #11
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Re: Any Duramax owners out there?

i got a 2001 4x4 2500HD duramax 6.6L love it to death best truck in the world even if its all stock with a straight pipe i got mb wheels, kevlar tires, ranch hand grill guard, tinted windows pretty damn dark, straight pipe, bully dog performance chip, tan leather interior these things are mean as hell when you put just a little bit of money into them

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Old 01-30-2011, 01:32 PM   #12
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Re: Any Duramax owners out there?

I got one...... an 04.5 with the LLY motor. Bought it new in April '04 and its got 54,000 miles on it now. I put Bilsteins on it when it was new... what a difference! I couldn't believe how crappy the original shocks were and they only had a thousand miles on them.

It's had a couple of goofy things go wrong with it: speedo head shorted out and it would read 100 mph sitting still. Had the EGR valve and a couple of injectors go bad. And this past summer, I had to have the injector harness extension installed for the #2 and #7 cylinders because it would go into limp and wouldn't come out.

Overall though, a great truck. How many trucks can do a brake torque with 5,000 pounds hooked up to it?
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Old 01-30-2011, 02:08 PM   #13
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Re: Any Duramax owners out there?

Quote:
Originally Posted by 63chevyll View Post
Once you have towed with one its hard to imagine we used to tow with those under powered big blocks for years
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O i know the power is 2nd to non, i remember when my father first got it he had to hall around 8000lbs worth of sidding to the build he was going to and the truck barely squatted when he loaded up the trailer and after that day he said he shoulda got it a longg time ago. One day while hauling his boat and camper he was about to pass somebody an right when he started he saw somebody coming up over the hill and instead of doing the safe thing and backing down he gave it some gas and blew by the guy with time to spare its funny how a 45 year old man can turn into the kid he once was when theres close to 600lbs of torque under his foot.

Quote:
Originally Posted by Project77 View Post
i got a 2001 4x4 2500HD duramax 6.6L love it to death best truck in the world even if its all stock with a straight pipe i got mb wheels, kevlar tires, ranch hand grill guard, tinted windows pretty damn dark, straight pipe, bully dog performance chip, tan leather interior these things are mean as hell when you put just a little bit of money into them

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There mean stock, my father wants to put the PPE tuner on his truck but hes going to wait until he switches all his fluids to Ams oil. The other day heading out the the farm i was going to pass somebody and when i did i gave it the usuall amount of gas i would for like my car and right when i did the truck just took off i couldnt believe the amount of passing ability that thing had, had so much fun i kept passing people even when i didnt need to

Quote:
Originally Posted by 1949gmc View Post
I got one...... an 04.5 with the LLY motor. Bought it new in April '04 and its got 54,000 miles on it now. I put Bilsteins on it when it was new... what a difference! I couldn't believe how crappy the original shocks were and they only had a thousand miles on them.

It's had a couple of goofy things go wrong with it: speedo head shorted out and it would read 100 mph sitting still. Had the EGR valve and a couple of injectors go bad. And this past summer, I had to have the injector harness extension installed for the #2 and #7 cylinders because it would go into limp and wouldn't come out.

Overall though, a great truck. How many trucks can do a brake torque with 5,000 pounds hooked up to it?
Ive heard about the problems with the injector harnesses... But it seems like every diesels have certain problems.
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Old 01-30-2011, 02:35 PM   #14
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Re: Any Duramax owners out there?

2004.5 LLY, bought it new and it now has 145,000 kms.

Love it for pulling.

Running empty I can get 21 mpg running 120 km/h.

Still not loving the 2500HD ride though. I went from a 2WD 1/2 ton Suburban to this 2004 2500HD 4X4 and really miss the smooth ride. GM was teasing us about a baby Duramax in a 1/2 ton a few years back and that would be a dream ride. Cancelled for now though.
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Old 01-30-2011, 02:35 PM   #15
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Re: Any Duramax owners out there?

yea i never put mine all the way down to the floor i never had to so far i had bought a cold air intake for it but it kept losing alot of power so we just took it off and took it back these things haul a$$ my friend has a 2008 3500 damn that thing gets up and goes and its bone stock love these trucks to death
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Old 01-30-2011, 02:53 PM   #16
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Re: Any Duramax owners out there?

I heard about that half ton, i bet they could make a lot of money off of it because of all the people wanting a diesel but not wanting to get the "big truck", i love the ride of the 3/4ton trucks but ive always liked the tougher rides.

These motors are simply amazing with the allisons behind them. Project77 how does he like the 6spd? I can imagen they are awesome.
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Old 01-30-2011, 03:09 PM   #17
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Re: Any Duramax owners out there?

Quote:
Originally Posted by 1949gmc View Post
I got one...... an 04.5 with the LLY motor. Bought it new in April '04 and its got 54,000 miles on it now. I put Bilsteins on it when it was new... what a difference! I couldn't believe how crappy the original shocks were and they only had a thousand miles on them.

It's had a couple of goofy things go wrong with it: speedo head shorted out and it would read 100 mph sitting still. Had the EGR valve and a couple of injectors go bad. And this past summer, I had to have the injector harness extension installed for the #2 and #7 cylinders because it would go into limp and wouldn't come out.

Overall though, a great truck. How many trucks can do a brake torque with 5,000 pounds hooked up to it?

I've got an 2WD 07 (Classic) CrewCab 2500 HD with 44K and have loved it since the day I bought it new. Is your's a 2 or 4 wheel drive? Would you happen to have the shock part number as I would like to improve the ride. How did you know it was in LIMP mode? TIA Also, I'm getting ready to put some new tires on it and want to change sizes since the factory ones look way to small. What's everyone upgrading to tire wise?

R/
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Old 01-30-2011, 03:15 PM   #18
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Re: Any Duramax owners out there?

Quote:
Originally Posted by Hart_Rod View Post
I've got an 2WD 07 (Classic) CrewCab 2500 HD with 44K and have loved it since the day I bought it new. Is your's a 2 or 4 wheel drive? Would you happen to have the shock part number as I would like to improve the ride. How did you know it was in LIMP mode? TIA Also, I'm getting ready to put some new tires on it and want to change sizes since the factory ones look way to small. What's everyone upgrading to tire wise?

R/
i got 265s we went with 275s and they were too big and we tried doing a little modding like messin with the torsion bars and triming some of the bumper but they still rubbed but if you have a lift on it then you can go with bigger tires but 265s are what im running on mine
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Old 01-30-2011, 03:17 PM   #19
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Re: Any Duramax owners out there?

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I heard about that half ton, i bet they could make a lot of money off of it because of all the people wanting a diesel but not wanting to get the "big truck", i love the ride of the 3/4ton trucks but ive always liked the tougher rides.

These motors are simply amazing with the allisons behind them. Project77 how does he like the 6spd? I can imagen they are awesome.
yea its pretty much the same size motor its just on a bigger body but yea id take a half ton over a 3/4 ton any day just because i like the half tons better
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Old 01-30-2011, 03:20 PM   #20
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Re: Any Duramax owners out there?

I have an 07.
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Old 01-30-2011, 04:19 PM   #21
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Re: Any Duramax owners out there?

Quote:
Originally Posted by Hart_Rod View Post
I've got an 2WD 07 (Classic) CrewCab 2500 HD with 44K and have loved it since the day I bought it new. Is your's a 2 or 4 wheel drive? Would you happen to have the shock part number as I would like to improve the ride. How did you know it was in LIMP mode? TIA Also, I'm getting ready to put some new tires on it and want to change sizes since the factory ones look way to small. What's everyone upgrading to tire wise?

R/
Rob

I put Bilstein shocks on my 04 this past summer. They helped a bit but I find the biggest help to ride is tire pressure. I run 55-60 when empty and then up to 85 PSI when hauling or towing. The empty ride is better with lower tire pressure.

Anyways I bought my Bilsteins from Kennedy Diesel, here is the link

http://www.kennedydiesel.com/results...ubCategory3=19

I shopped around a bit and using dieselpace.com I bought from Kennedy.


As for limp mode, when mine went in it was very obvious. The truck sounds way different, louder, and not as smooth, and it would not rev over 2000 rpm. Mine went into limp mode for 2/7 injecter wiring and the wires shorting out on the alternator bracket, both common problems on lly's.
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Old 01-30-2011, 04:33 PM   #22
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Re: Any Duramax owners out there?

Quote:
Originally Posted by Hart_Rod View Post
I've got an 2WD 07 (Classic) CrewCab 2500 HD with 44K and have loved it since the day I bought it new. Is your's a 2 or 4 wheel drive? Would you happen to have the shock part number as I would like to improve the ride. How did you know it was in LIMP mode? TIA Also, I'm getting ready to put some new tires on it and want to change sizes since the factory ones look way to small. What's everyone upgrading to tire wise?

R/
Hey Rob,

My truck is a 4WD... I know I have pics around here somewhere, but I can't find them now, of course.

I got the shocks from Kennedy Diesel in Loyal, WI. Here is his site: http://www.kennedydiesel.com/ . Click on suspension, then shocks and follow your way to your truck app. He's got a lot of other really cool stuff, too.

When the Duramax goes into limp mode, the computer begins to shut down to keep from hurting anything vital and the most noticeable thing is that you won't be able to go more than 25 mph. Limp mode gets progressively worse the longer you drive it. Mine sounded like it was missing and wanted to die. The injector harness extension does just that: it extends the wiring harness for the 2 & 7 cylinders, because from the factory, they are not long enough and they chafe on the edges of the metal brackets causing a short. From what my mechanic read, there is a lot of wiring on the DMAX's like this, including one of the positive battery cables.

My truck came with Bridgestones on it, but they seemed small for the truck, too. They were like a car tire. When I finally needed new ones, I got Bridgestones again, but I got the Duravis M773II's in an LT245/75/R16. A much beefier tire and they wear like, well, stones.

Ray

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Old 01-30-2011, 04:42 PM   #23
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Re: Any Duramax owners out there?

Just to add one thing, I was able to get my 04 to go 80 km/h in limp mode. You needed to work at getting the Alison to shift and a slight downhill was needed to get it into high gear!
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Old 01-30-2011, 05:12 PM   #24
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Re: Any Duramax owners out there?

We have a 02 that looks like Project77's, but still in stock form, and with the dark gray interior. It's just about to roll over 300K here probably this year.

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Old 01-30-2011, 05:25 PM   #25
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Re: Any Duramax owners out there?

Quote:
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Your over on the DF right?

yup, same user name.

havent been hanging out over there much..................The more im over there the more i want to spend money.......

the more im here the more i want to fix rust......
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