It seems like you of all people would have your truck running by now. Come on Ben spring is around the corner.
Im too busy and have more important things to do.
It seems like you of all people would have your truck running by now. Come on Ben spring is around the corner.
Ok sorry guys, just kinda frustrated here but oh well...
So 3 hours away from home last night I lost an injector. Started clacking/knocking/POURING white smoke. 25 miles after I filled up with fuel, go figure.
I had my truck towed to my buddys house in burlington cause he has a good sized garage. I didnt bring my tech 2 with me (stupid), so I used the DVT's in EFILive to try to diagnose the problem. I guessed it was an injector because the noise was an upper end "clack" and not a bottom end "knock", and I have no blowby or any other mechanical problems. Thick white/gray smoke is obviously fuel.
So I use the EFILive DVT's to shut off injectors. I get to #7 and the smoke goes away and the knocking immediately stops. YAY!! Found the problem. So then I call up Schulte (huge thanks, put it on my tab of things I owe you for bud ) and he meets me halfway between burlington VT and home in CT... so we each drive about 2 hours, him a little more. He brings me a set of good used injectors to get me home. I drive back up to burlington...theres no heat in the garage so at this point ive been working all day in ~38* replacing injectors. I swap my 40% tip over to a good used injector and put it in. Still knocks, no change. So I think ok maybe the tip is clogged, so I put in a good/used/stock injector. Still no change, smokes/knocks.
So I pull up efilive again, balance rates are all over the place. Use the DVT's and shut off injector #7. Smoke/knock stops. WTF!!!!! At this point its getting late and I just need to get back home because I have customers trucks in the shop tieing up the lift that I need to get done, business stuff, etc...
I call ScratchRob and he comes with the gooseneck and his LBZ to pick me up...I think he ended up driving 700 miles between getting his trailer, driving to VT, and driving back to my house. I owe you too, we agreed on a bazillion dollars compensation and a set of BT DieselWorks twins. Thank god I have such great friends...
So I go mess around with my truck this morning. This time I grab the Tech 2 and discover something interesting.
I fire it up, knocking, smoking etc. I go to the injector shut off/cylinder power balance thing in the Tech 2. I shut off injector #7, no change, still knocks. Shut off injector #3....KNOCK STOPS. Shut off injector #7 with EFILIve DVT's, and the knock stops.
Interesting.... I hope I didnt work all day in a 40* garage and make two of my friends drive hundreds of miles all because the DVT was telling the wrong injector to shut off...???
Ben
Simon, you know much less about all this electronics/duramax shit in general than I do so buzz off.
when I get the engine back in my truck, I can put that known-bad injector back in each cylinder and then go through with the tech 2 and map it out.
Im too busy and have more important things to do.
Sorry we received no feedback. Without evidence to back up the claims, we are in no position to make software changes based on hearsay.
Cheers
Cindy
Cindy,
I have access to LB7, LLY, LBZ model years and have a Tech II with a Candi Module.
Please email me or PM me with the test procedure you need done and the data you need and I will get it done for you in the next week.
Tony
Does anyone know if this problem has been corrected with the new V2 or not? If not can someone verify which cylinder is goes with which injector when shutting them down with the V2.
Help Please.
I have a TechII, access to almost every Snap On scanner, and my V2 all within hands reach basically. Does this test still need to be done? I can try it tonight?