Well, I guess it had to happen sooner or later

[Diamondpilot]

I am not a certified mechanic, but how would fuel get into the crankcase, much less the parking lot due to injector failure. You trust this dealership? Maybe a second opinion would have been warranted. Good Luck!

The injectors are hydraulic. Use oil pressure on some to operate. Failing injectors lead to fuel in the oil or can just dump in so much fuel it floods the crank case venting it out.

Chris

 

[2458n]

The injectors now inject fuel a couple of times during the stroke so that requires the 30,000 pounds of pressure. WITH THE OLD 5.7 CHEVY GAS GETTING 250,000 = MILES PEOPLE WOULD HAVE BEEN BETTER OFF.

 

[dodge man]

Yes it can happen, they can dump in so much fuel it will vent out the crankcase. Hopefully there is no other damage, they can over fuel and burn pistons and cause other damage.

 

[JJZ 109]

I agree. I sold my camper last June and sold my F350 dually with it. Owned it for 10 years and was a good one. Last run of the 7.3's. Since I was selling the camper I didn't really need that much truck anymore. The buyer wanted the truck to pull the camper so I sold it to him. I replaced it with a gasser. Suits my needs better now.

Sold my 1997 F Super Duty 7.3 bucket truck last winter. Replaced with a 2001 F450 bucket truck with V10 gasser. The 7.3 ran great and had a DP Tuner chip, upgraded intake and down pipe but still seemed like I was starting out in high gear when trying to pull a trailer up a grade from a standstill. The V10 has no such issues. Step on pedal, truck pulls away like nothing is behind it. Mileage slightly lower with the gasser, but fuel is much cheaper as stated. Lower maintenance costs too.

 

[schmism]

My '03 Chevy Duramax needs a set of injectors after 162,000 miles. Guess I may be lucky, I have seen many people who after that many miles are on their 3rd set. :thumbdown::thumbdown: A 3K expenditure I wasn't planning on!

if you know people that are on there third set... and this is a known issue... remind me again why its an expenditure you were not planning on?

 

[vulcancowboy]

if you know people that are on there third set... and this is a known issue... remind me again why its an expenditure you were not planning on?

I don't personally know anyone, just saw some posts in a Chevy forum that I follow. I think, (hope) they are the exception. I was surprised because I didn't have any of the symptoms that people usually see, hard starting, smoking, loss of power. The only thing I saw was the low oil pressure. I had hoped that my truck had been blessed with a good set of injectors. No matter now, I traded it for a Silverado 1500 gasser last night.

BTW: here is the oil/diesel slick that greeted me last week, (it was from my truck, not the red Honda in the pic)

 

[Capricious]

how would fuel get into the crankcase, much less the parking lot due to injector failure. ...

I know nothing about these Duramx things, but if an injector or a line is leaking, and the injector is under the valve cover, then the fuel goes straight into
the crankcase.

Or, if the injector is "dribbling" and passing too much fuel, then it can get by the piston rings.

At work we run Detroits, Deeres, Cummins, EMD's, and the occasional Lugger (Alaska Diesel Electric) all of which are oil-sampled, and one of the checks on the sampling is fuel dilution of lube oil.

 

[allen in texas]

I will soon be having the 5th Yes the 5th set of injectors in my 03 Duramax. I am averaging about 50k per set. The first three were on Chevy. The last set and this set are on me. I am adding a lift pump and additional filtration to try and get the truck to last a bit longer. It is my work truck and I want to keep it but I can't keep throwing money at it. Yes, I have had the full crankcase and diesel running out everywhere.
Trying to decide and researching whether to buy Ram 2500 or another Chevy.

 

[vulcancowboy]

I will soon be having the 5th Yes the 5th set of injectors in my 03 Duramax. I am averaging about 50k per set. The first three were on Chevy. The last set and this set are on me. I am adding a lift pump and additional filtration to try and get the truck to last a bit longer. It is my work truck and I want to keep it but I can't keep throwing money at it. Yes, I have had the full crankcase and diesel running out everywhere.
Trying to decide and researching whether to buy Ram 2500 or another Chevy.

To me, the injector problems negate most of the advantages that a diesel brings to the table. I have some buddies with the Ram diesels, they are not happy with the fuel mileage. Good luck!

 

[Scott65]

Wow that sucks. If you didn't have hazing at the tail pipe, you might have only had one injector fail. That is almost always a symptom of multiple injectors failing. GM has specs for fuel rates that they should have checked before condemning it. But it seems you already know you were on borrowed time either way. Anything before the 04.5 lly engine was iffy.

Correct that the injector(s) fail under the valve covers and dump straight into the crank case, and blow holes in pistons-then the crankcase directly below. 7.3 and 6.0 powerstrokes or other applications for international were the engines with hydraulic injectors driven with engine oil