Register free!

The Green Industry's Resource Center



Reply
 
Thread Tools   Display Modes
  #1  
Old 03-15-2011, 04:11 PM
joed joed is offline
LawnSite Bronze Member
 
Join Date: Jun 2001
Location: Toronto, Canada
Posts: 1,108
2005 Chevy Silverado 2500 with Duramax Diesel

I've been looking at a 2005 Chevy Silverado 2500 equipped with the duramax diesel at a local GM dealer near me. The truck has 236 000 km or about 150 000 miles. Wasn't used for anything but personal transportation. Asking price is $18 000 Canadian. I was wondering a few things about this truck:
1. How long does a duramax diesel and allison tranny last?
2. Any known issues with this year of truck?
3. Fuel economy?

Thanks.
Reply With Quote
  #2  
Old 03-15-2011, 09:49 PM
mowerbrad's Avatar
mowerbrad mowerbrad is offline
LawnSite Fanatic
 
Join Date: Jan 2008
Location: Grand Haven, Michigan
Posts: 6,273
That truck will have the LLY engine in it, which was a pretty good series. I didn't have the injector problems that the previous generation had in the 2001-2004 trucks.

Its tough to find out since the truck is at a dealer, but if the truck had a programmer/tuner on it, you could have premature tranny problems. The Allison transmissions are awesome, but like anything else it all depends on how well it was maintained. Same thing with the engine, programmers/tuners can really stress the engine out if they were run at a higher tune level without proper modifications (which I don't know much about). But if the truck didn't have any sort of programmer on it and it had proper maintenance, you can probably expect 250k-300k miles out of it. Its tough to really say how long it will last. There are trucks out there that still have their original engines and trannys and have 700k on them.

Fuel economy is going to depend on what rear end you have, 3.73 or 4.10. I would assume its a 3.73, which will get you pretty good mileage. You can probably expect upper teens to around 20 on the highway and lower teens around town. Depending on how you drive and the highway speeds you drive, those numbers could go down or up.

I feel like there is something with that engine (nothing major at all) that you can do to fix a minor problem that some encounter. I just can't think of it right now.

Overall, good truck/engine/tranny...just depends if you want to buy a truck with 150k on it, hoping that it was taken care of well.
__________________
'07 Chevy 2500HD
2010 John Deere Z925A 54" MOD
2011 John Deere Quik Trak 647A
John Deere walkbehind
81"x18' trailer
Stihl handhelds
Reply With Quote
  #3  
Old 03-16-2011, 09:21 AM
buttaluv buttaluv is online now
LawnSite Senior Member
 
Join Date: Dec 2000
Location: MidWest
Posts: 511
that's alot of miles...I know the diesel engine will run forever..etc. etc. etc. but there is alot more to that truck than the motor, my gas truck has 151,000 on it..motor is great, but it's rusting, needs front brakes, rebuilt the rearend last fall, rattles, and so on!
Reply With Quote
  #4  
Old 03-16-2011, 12:57 PM
Evan528 Evan528 is offline
LawnSite Silver Member
 
Join Date: Jan 2000
Location: Montgomery County, PA.
Posts: 2,144
Quote:
Originally Posted by buttaluv View Post
that's alot of miles...I know the diesel engine will run forever..etc. etc. etc. but there is alot more to that truck than the motor, my gas truck has 151,000 on it..motor is great, but it's rusting, needs front brakes, rebuilt the rearend last fall, rattles, and so on!
I completely agree. Im not sure why people seemed to be so unphased about a truck with high miles just because its a diesel. The rest of the truck will be worn out. Its not just the engine that is expensive to repair on 3/4 ton trucks. Have you priced the cost of having new ball joints installed? suspension? brakes, rotors, calipers, rear end etc?
Reply With Quote
  #5  
Old 03-16-2011, 08:42 PM
jimmyjack's Avatar
jimmyjack jimmyjack is offline
LawnSite Senior Member
 
Join Date: Oct 2009
Location: portsmouth ri
Posts: 264
the LLY 's have overheating problems ( well some of them).......the LLY's have the worst mileage out of the different duramax generations, its not real bad but not as good as it could be
Reply With Quote
  #6  
Old 03-16-2011, 11:04 PM
westcoh's Avatar
westcoh westcoh is offline
LawnSite Senior Member
 
Join Date: Apr 2006
Location: Alberta
Posts: 313
I have an 05 duramax and as we speak I'm in the middle of tearing it apart for new headgaskets. If the engine/tranny was maintained properly and no mods done to it, I'd expect them to outlast the rest of the truck. As the previous poster mentioned the LLY duramax (2004.5-2005) do run hot. In the summer and if your towing heavy you'll hear the fan on alot. I wouldn't worry about overheating though unless your towing massive loads on hot days pulling up a long steep hill. Fuel economy I see about 20hwy and 11-12 towing a good sized load. That's with some mods to the engine tho. . .and prolly also why I'm replacing headgaskets now. Not a fun engine to work on, there's alot of crap packed in that engine compartment.
Reply With Quote
  #7  
Old 03-16-2011, 11:08 PM
westcoh's Avatar
westcoh westcoh is offline
LawnSite Senior Member
 
Join Date: Apr 2006
Location: Alberta
Posts: 313
Forgot to mention if I was getting a new truck I would get one with the lbz duramax (most 06's and early 07's before they went to the new body style). Lots of improvements over the lly, a 6-speed allison, and they don't have all the emissions junk the newer ones have.

If the price was right tho, I wouldnt pass up on a well maintained lly.
Reply With Quote
  #8  
Old 03-20-2011, 08:45 PM
joed joed is offline
LawnSite Bronze Member
 
Join Date: Jun 2001
Location: Toronto, Canada
Posts: 1,108
Thank you to everyone for all of the responses. They've been extremely helpful in educating me about the duramax. I have a few other questions:

1. I came across a 2007 Sierra with the duramax diesel at a local dealer. This truck has 80 000 km (about 50 000 miles) and is good condition. It has the new body style. The salesman told me it had all of the emission controls on it. He also said they require a lot of maintenance. Any thoughts on the 07 duramax?

2. Is there a way of telling which generation of duramax a truck has? How do you know if it's an LBZ or LLY etc?
Reply With Quote
  #9  
Old 03-21-2011, 11:06 PM
jimmyjack's Avatar
jimmyjack jimmyjack is offline
LawnSite Senior Member
 
Join Date: Oct 2009
Location: portsmouth ri
Posts: 264
Posted via Mobile Device
Reply With Quote
  #10  
Old 03-21-2011, 11:11 PM
jimmyjack's Avatar
jimmyjack jimmyjack is offline
LawnSite Senior Member
 
Join Date: Oct 2009
Location: portsmouth ri
Posts: 264
LLY were from 04.5 to 05....
LBZ were 05 to 07 "classic" body style
so if its a new body style with a DFP filter on it then its a LMM
Posted via Mobile Device
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 04:02 PM.

Page generated in 0.09880 seconds with 7 queries