snowmanx

I don't think they are the best anymore, at least not the 5.9. Had my cummins mechanic tell me he would never own a 03-07 5.9.....Too many failures. He drives a duramax, same thing I'll be driving if I EVER own another diesel.

DIESELS suck!!!! So what if they pull great and have tons of torgue....don't do much good when it won't start because of a blown engine.

scottsjeeprolet

Great mechanic. See Ya later!!!!!!!!!!!!
Good luck with your Duramax and your injectors.

Tacomaman87

[QUOTE=snowmanx; He drives a duramax, same thing I'll be driving if I EVER own another diesel.

DIESELS suck!!!!

WHY DONT YOU FIND ANOTHER FORUM IF DIESELS SUCK???????????!!!!

93stacks

we have 7 main bearings and 6 cylinders and they have 5 mains and 8 cylinders. hmm which you think is a lil more durable letalone rod sizes

hvaccer

They're all pretty much equal anymore. How many people actually keep their truck for 250,000 miles, let alone 500,000???

John_P

-----------------------------------------------------------
snowmanx:

No offense to you Sir, but don't think for a minute that the 6.6 Duramax is any better than a 5.9 Cummins. The problems with the Duramax engines are well documented here. When you begin cranking the power up on them the problems begin. Serious problems such as the rods bending in them. Many of
our Members who own the Duramax trucks will attest to that. In our NCDTR #18 Chapter, DTR Members such as OthrGrl amd Buck Spruill can attest to what I am saying. I think in stock form they are fairly reliable, but IMO so is the 5.9 Cummins. Everyone is entitled to their own opinions but the Duramax engines are not bulletproof.

---------
John_P

John_P

---------------------------------------------------------------------
I bought my 1996 Dodge CTD 12 valve new and have 310,000 miles on it now.
IMHO, I still think the 94'-98' Cummins 12 valve engines were some of the best ones made.

--------
John_P

twichit

I'm the third owner of my truck it's rolled 235,xxx ,i would like to see 500,000 ,yes it 'll be a while , but i don't need a new truck , the one i have does everything i need it to

w.tx iceman

And a phenomenal amount of them are still on the road.

roxxx

I think all Diesel motors are getting a bad rap now I know i dropped. my 2006 for a 1992 and just bought a 1993 ..... The reason being is the Dang computers and all the pollution add on stuff . I have driven BIG Cummins and Cat motors
Never was lucky enough to driver or operate any of the newer Trucks or equipment which is obviously quite well appointed as is most of the new light duty trucks. Will any of the light duty trucks see 1 million miles ??? Bet if they were not running all the emissions Equipment and the computer management systems they would have a shot

John_P

-------------------------------------------------------
Good post roxxx! I agree.

jesussaves

Are you serious??Look in the 1gen section, everyone is at least at 200k just about

I drive a honda w/ 305k & a cummins with 240K
Wont sell eithier of them untill they die. It is the biggest waste of money if you keep buying vehicles. Avg car loses 40% of their value in the 1st 4yrs. Every car I ever bought I still own granted im only 35. I had that honda since i was 19 and bought it with 60K my 93 cummins motor is now going into a 04 F250 so it will be around along time as well. 500-700k is common for those 1 gens so i got a long ways to go

93stacks

my 93 i bought had 256,000 miles. leaked a bit of oil from the rear main. i pulled the engine at 260,000 miles. cylinders still had cross hatching on the walls and all bearings were well in spec of cummins. i went ahead and put nwe bearings in just for the heck of it and put her back in. at 274,000 i was pushing around 40-48psi of boost for a good 10,000 miles when the head gasket started to seep. pulled the head to do a gasket and A1 studs. cylinder walls still had cross hatching and no ring ridge at all. now at my current status im at around 340 horse and turning 3500 rpms 4 days outta the week. she now has around 278,000 miles and is still doing great.

dslkevin

[QUOTE=Andy505;2758746]
Now look at this...
Dodge has used the Cummins in Dodge pickups since 1989, with slight mods to them throughout the years due to emissions.
5.9
6.7

Chevy has went through a couple different engines
6.2 Diesel Optimizer
6.5 Diesel Optimizer
6.6 Duramax
- LB7
- LLY
- LBZ
- LMM
- LML
- LLwkcktyibdw blah blah blah

Cummins has 1 major changed their B series engine with the 5.9 to 6.7 displacement. It is the same motor with a larger bore and longer stroke.
The others have went through at least two different engine families (that is the current engine wasn't modified whether it be minor or major, the motor was completely replaced with a totally new design). This should tell you something with the manufacturers confidence in their product.
QUOTE]

Are you serious????

Lets see, changing from a 12 to a 24 valve was not major? At the same a totaly different fuel injection system? Lets not forget that not all 12 valves are the same. Again in 03 they went to the CR with a change again in 04.5. Don't get me wrong I like the Cummins(thats why I have one in my work truck & am putting one in my daily driver, both being GM trucks) but you need to get over the blind brand bashing.

Raspy

I disagree. Very few of them are "still on the road" because the vast majority of them made it home just fine.