I have a 03 duramax and my mom is looking at a 05 duramax and wants it to last a long time! and was wondering if there a good truck or to stay away and what kinda trouble they have would be great thanks guys

:rolleyes::DI have a 03 duramax and my mom is looking at a 05 duramax and wants it to last a long time! and was wondering if there a good truck or to stay away and what kinda trouble they have would be great thanks guys
I have a GMC 3500 that I got 05,25000 K on it today no problems in 5 yrs. I say go for it.........:rolleyes::D

I think there is an lly floating here with something like 750K miles on it. Dont know if its true though. I really like mine.:)

got a 05 with 120K. had to replace injectors but that was caused by watery fuel. Didnt have to pay for it. other then that no problems. LOVE IT!!!

The 750k truck is true, its an 05 GMC. I was trying to buy it.

I've had 2 LLY's and love them. 200k on my 05.

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ok thanks for the help guys its a 250 mile drive to it so looking like a little road trip

I got 289,000 miles on mine and I LOVE THIS TRUCK. almost allo towing miles about 7-10,000 lbs a pop.

I think there is an lly floating here with something like 750K miles on it. Dont know if its true though. I really like mine.:)

Has anyone done the math on this? That guy would be putting in over 417 miles a day, every day for five years.

Has anyone done the math on this? That guy would be putting in over 417 miles a day, every day for five years.

Not sure it it's the case with that guy or not but there are a few people who are hot shots for RV companies that deliver new rv's all over the country. If he is one of these people 417 miles is not that much at all.

Mine has got almost 75,000 miles on it and I run heating oil in it in the winter, which doesn't have the additive package that you get at the fuel station. I do use stanadyne fuel supplement though which probably helps. Anyway, I've had no troubles with my fuel system. Its been a good truck. No leaks, runs good, and drives nice. Only complaint is fuel economy which really isn't all that bad compaired to an equivalent gas engine (if you could find one).

The LLY's are kinda the forgotten child in the Duramax generations. Awesome motors, in my opinion, are very reliable, and powerful. As said before, they don't get alot of rap as the "true" LLY's were only offered until 06. I would buy another, already had two of them, and both were great trucks.

Great trucks. I have my LLY and haven't had any engine problems!!

oh, really? JUST because yours broke all LLY's are junk? :rolleyes:

FYI, ALL duramax's are just as susceptable to damage from contanimates in the fuel.

There is NO SINGLE duramax generation that is "more sensitive" than others... they all use the same fuel filter, etc....

I think the fuel filter is junk, yeah. Water sensor didn't tell me if it had water in it. Filter didn't stop the water...

x2 with Gotho... freak thing. What you are describing is true of every single diesel pickup on the road today. Put water through them and they're gonna crap out... same with dirty fuel. There are aftermarket products that help in all cases.

Mine now has 153k miles on it... and this is by far the best truck I've ever owned. Period.

I was just like you before mine broke, it really was the best truck I have ever owned. I was going to keep it for a long time, I lifted the cab and the bed off 6 months ago and sanded and painted the frame to keep rust away, I mean I babied it. All I am saying is I am not a freak situation, I am just a regular guy who was driving the truck and it broke.

I think the fuel filter is junk, yeah. Water sensor didn't tell me if it had water in it.

well hate to break it to you but your LMM has the same fking filter and the same water sensor so Id be pretty worried about your new truck too.

well hate to break it to you but your LMM has the same fking filter and the same water sensor so Id be pretty worried about your new truck too.

Are you serious? They didn't change it in all that time? What can I do about it when the warranty runs out? Is there some better filter I can rig up? I'm guessing there is?

Are you serious? They didn't change it in all that time? What can I do about it when the warranty runs out? Is there some better filter I can rig up? I'm guessing there is?

there is a new "coalescing" fuel filter available that is supposedly more efficient and better at filtering out water, but not all dealers have them and you have to actually ask for it by part number. The GM part number for that "special" fuel filter is 12633243.

If you walk into the dealer and ask for a "fuel filter for a 2010 duramax", they will still give you the old one...which is...exactly the same as the 2001-2009 duramax fuel filters...

and yes, im also serious about how they have not changed the water in fuel sensor since 2001 either... ;)

ben

there is a new "coalescing" fuel filter available that is supposedly more efficient and better at filtering out water, but not all dealers have them and you have to actually ask for it by part number. The GM part number for that "special" fuel filter is 12633243.

If you walk into the dealer and ask for a "fuel filter for a 2010 duramax", they will still give you the old one...which is...exactly the same as the 2001-2009 duramax fuel filters...

and yes, im also serious about how they have not changed the water in fuel sensor since 2001 either... ;)

ben


Seems like they would have done something, doesn't it Ben? Maybe they didn't put the technology into the thing because by-and-large there isn't that big a problem. If you have the EPA on your butt, you're gonna spend the high tech dollars on getting that right... not trying to strain at gnats over a problem that the vast majority of us never encounter.

Do you know if the Racor coalescer filter does the job any better? I've been using those now for awhile... never have had any trouble with water, but came across these and they seem to work fine.

Babying a truck is not a good thing for any fuel system. Infact many will claim that it's part of the problem with faulty LB7 injectors. Ones that get beat to hell supposedly don't eat through injectors. Same goes for trucks that sit often vs ones that are driven. There's low miled LB7's (50-60k) that have injector problems, yet there's some that make it to nearly 200k on a set.

I'm not trying to explain your problem in particular, but please don't think that babying a Dmax will help anything. They're made to work.

Buy an air dog if your that concerned with it!

I just rolled over 65000 on my lly, and what impressed me the most was my last pull. truck-6850lbs, trailer 9480lbs, 1976 ji case 1175 16200lbs, all the spare tires and jacks in the back probably 500-600lbs, anyway gcvw was 33,500lbs from Fargo OK. to Muenster Tx. which was 300.39 miles via map quest. Truck pulled like a freight train!!! No problems at all. (especially DOT), AND NO FLAT TIRES!! Its built by humans and it will break (eventually), and I'm gonna just fix it! love this truck!:)

Babying a truck is not a good thing for any fuel system. Infact many will claim that it's part of the problem with faulty LB7 injectors. Ones that get beat to hell supposedly don't eat through injectors. Same goes for trucks that sit often vs ones that are driven. There's low miled LB7's (50-60k) that have injector problems, yet there's some that make it to nearly 200k on a set.

I'm not trying to explain your problem in particular, but please don't think that babying a Dmax will help anything. They're made to work.


Thats funny because my dad has an 03 with 243,000 on it and still has the original injectors. Drove it at least 100 miles a day for 6 years straight. He didnt really hammer on it much, just constantly drove. It doesnt get driven as much now because he bought a vw TDI for work. Its made it a year of that so far, I am interested to see how long it takes for them to shit out now. Now that I remember, he would run a few oz's of some kind of fuel additive in every tank as well. We also think that might have helped the injectors hold together.

As for the LLY, I love mine. Bought it a little over a year ago with 66k on it and I just rolled 96k. Been a great truck so far. I am kind of hard on it, so my transmission is hurting a little. I hope it holds together for a while longer. I'm pushing 35psi of boost with all stock parts, so I am personally worried about the head gaskets.. Well see though.

I have heard the biggest things that kill injectors are bad fuel, cheap filters, low fuel pressure, and long idle times. I change my fuel filter every oil change, alwaysw run an additive and I never let it idle for more than 5 min. Seems to be working so far.

I have had my LLY for a few years and i love the truck the only big problem i have had was the head gaskets but other then that great.

I have heard the biggest things that kill injectors are bad fuel, cheap filters, low fuel pressure, and long idle times. I change my fuel filter every oil change, alwaysw run an additive and I never let it idle for more than 5 min. Seems to be working so far.


My trucks idle half of the day. Even in the summer I'm in and out of them often enough that I'll just leave them run. Infact, in the winter time I rarely shut them off aside from going in for the night (which doesn't happen if its snowing anyhow). There have been countless days that I'll run into my buddies shop and wind up staying for 3-4 hours and forget its out there running! ;)

My trucks idle half of the day. Even in the summer I'm in and out of them often enough that I'll just leave them run. Infact, in the winter time I rarely shut them off aside from going in for the night (which doesn't happen if its snowing anyhow). There have been countless days that I'll run into my buddies shop and wind up staying for 3-4 hours and forget its out there running! ;)

Happens in cold climates alot. Northern canada parking lots will be full of idleing trucks whenever they stop for something.

I used to leave mine running a fair bit but it really seems like there are greenies these days and it makes me feel a bit guilty.

I used to leave mine running a fair bit but it really seems like there are greenies these days and it makes me feel a bit guilty.

Guilt, schmilt. Their much lauded Priuses and other battery powered turds create more pollution by volume and worse by toxicity in their manufacturing process than they will ever save. We're not driving a future toxic dump... they are. Nothing to feel guilty about in my book.