A friend just took his 2006 Duramax (apprx 70k miles) in for an excessive smoke situation.

Two injectors and a $1600 bill.

Diagnosis - most likely crappy fuel

Happy to own a 6.0!

 

Very Interesting Mark

Thanks for sharing

Is those a Common Rail Fuel setup??

 

All of the D-Max motors use a common-rail fuel system with a Bosch CP3 pump ( CP4 on the new LML). The early ones (LB7) had such a bad time with injectors that the warranty was extended to 7yrs/200k miles. Tough to have to swallow a $1600 repair bill @ 70K.

 

I don't want this to come across the wrong way...but I'm glad we're not the only ones that get raped over injector repair/replacements.

Benny, I've heard some serous horror stories related to guys running the 6.4L & 6.7L when it comes to bad fuel and common rail fuel systems. I thought I wanted a 6.7L until I talked to a guy at my local dealership......

 

Iv been on the 6.7 forum to and that scares the Daylights out of me too

The 500 ponies stock would be GREAT But the rest of it IDK

then A guy cant even change those injectors M-Chane tells me they each need to be programmed specific truck

He also told me that to change that High press fuel pump on a 6.4 the cabs coming off

These 6.0s are the Last truck an owner could wrench and fix most things

there just setting them up Now so each Component needs to be programmed to the PCM when it needs changing so an owner can no longer work on there ride and has to Haul it in to the Dealer no matter what. I do agree that some things just better that the Dealer does computers and such but not stuff like injectors ect.....

Iv Just come to the conclusion I HAVE to MAKE this 6.0 LAST I can actulley wrench on this one for the most part (give or take a FICM or PCM failure) With the Help of the FTE and the Techs on here

The last couple of weeks in my fight to make this truck last Iv been crawling under it with rust remover and a can of rubberized under coating I did the oil pan and front axel so far and looks Great. Rust will be the Death of my truck if I just let it go

 

When a HPFP on a 6.4, 6.7 or a 6.6 has a catastrophic failure it's a ~ $10k repair bill.

There's alot of drama in the 6.7 forum over fuel quality right now!

An interesting feature on the Duramax is you don't even have to remove the valve cover to replace an injector.

 

The common rail system is junk, I will never own one myself

 

LOL-Shall we compare 03-07 Duramax problems compared to 03-07 PSD problems?

 

So what is wrong with common rail? I'm replacing the engine in my son in laws 2006 Dodge, the common rail looks so straight forward and simple compared to my 6.0's oil fired injectors.

 

Only if we compare 'em all and not the more common issues. I've said this before...brand threads are just like the oil threads or underwear....it's all a matter of opinion and taste.With the HUEI...the fuel isn't under high pressure until the injectors fire it into the cylinder. The common rails...it's under high pressure from pump to the injectors. Thus, if you have something grenade (fuel pump) or crappy fuel it's forced through the entire fuel system. And I'm not a fan of high pressure fuel leaks...things can get real exciting real quick. I know Dodge at one time was using two fuel pumps...Ford only uses the one. Not sure on the Chevy...but considering they were using the same CP2/CP3 pump I suspect they had a similar set-up to Dodge.

Both systems have their flaws...and even some HEUI systems are better than others. IMHO the Cat (original) HUEI system is way better than the one we have on the 6.0L...but it has it's issues as well. I haven't worked on a Dodge or Chevy/GMC diesel truck...so I can't comment on them. I just know what I've been reading & hearing about the common rail'd 6.4L & 6.7L PSD. The shear costs for simple things are scaring the crap out of me.

 

At this point in time, my 06 Ford has his 06 Chevy beat, and I am at 105k miles vs his 70k!!

(I know this one event doesn't prove anything BTW - just was amazed at the cost for 2 injectors)

 

Sorry, it was late lastnight and I was NOT trying to cause any problems on this thread.

Like Zhilton said ....it's all a matter of opinion and taste.

Everything will eventually have problems, Cummins, Powerstroke, Duramax....Honda civic's...some sooner then others.

 

I think that this trend of making vehicles harder for the owner to self service is due to the higher technology required to stay competitive and remain in compliance with Govt. regulations. That said; it appears that it would be in the best interest of the manufacturers to channel all repairs through a dealer.

Another interest of mine is Harley motorcyles, where there sure appears to be an effort made to channel all maintenance and parts through a dealer.

So, as a 70 year old Geezer, I'm hoping that my 04 6.0 and my 2005 Road King outlast me, because one of my pleasures is tinkering with mechanical devices.

 

6.7's don't have 500 ponies stock. Stock is 400 hp. 800 tq.

 

LOL this thread reminds me of my dad and grandpa complaining about how crowded and hard to work on their new vehicles were when they started fixing their vehicles made in the 90's They went from a carburated motor that dident have much for emissions to a fuel injected motor that was starting to crowd the engine compartment with things like AC and emissions, and now look at things. So anyway if we take the 6.7 and compare the cost/reliability of the truck maybe things are not as bad as they sound. Yeah 10k is a huge bill, but if its a problem affected by less than 5% of the trucks under 300k miles they its not so bad. This is just an example I dont think they have been around long enough for us to be reading about 300k lol but soon.