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- LLY injector issues - DuramaxDiesels. com
When one injector has an electrical issue the fcim will turn off the whole bank At least you narrowed it down to only four injectors Test the wires from the ecm all the way to the injectors for resistance and shorts
- Injector issues solved - Chevy and GMC Duramax Diesel Forum
The injectors are a notorious problem on the LLY, especially #2 and #7 I soldered 2-way connectors into the harness for #2 and #7 and made several pigtails with injector connectors
- 10 Common LLY Duramax Problems (and How to Fix Them . . .
Discover the most common LLY Duramax problems, including overheating and injector issues, with symptoms, causes, fixes, maintenance tips, and upgrade solutions
- The Most Common Problems with the 6. 6L Duramax Diesel
Fuel injector harness chafing is a common problem on LB7 and LLY engine generations, but also affects later models This can cause a number of issues that include no-start and rough running conditions, and it is often misdiagnosed as a faulty fuel injector
- LLY throwing codes and running rough. . injector? - Diesel Place
Test both of the fuel injector circuits between the fuel injector and the multi-way connector for high resistance Refer to Circuit Testing and Wiring Repairs in Wiring Systems
- 11 Common 6. 6 LLY Duramax Problems And How To Fix Them
As LLY Duramax trucks on the road are only getting older, more and more are being found to have injector harness chafing Vibrations, heat, and just general wear and tear cause the injector harness to rub against other vehicle components until the wiring gets exposed
- Need an LLY genius’ help. : r Duramax - Reddit
Check the wiring harness going in to the Fuel Injection Control Module (FICM) There is a spot in the harness a couple inches back from the plug going into the FICM that is zip tied to a metal bracket They like to rub through there and you get all sorts of injector issues like you describe
- LLY Duramax Owners | 2005 Dually check engine this am- P1293 Injector . . .
After a lot of research and talking with a couple diesel mechanic buddies, I’ve narrowed it down to a few possibilities: • Wiring issue short somewhere • Bad FICM What I’ve done so far: • Replaced both batteries (old ones were 5+ years old) – no change • Inspected injector wiring harnesses as best I could – no visible rubbing
- Mastering Duramax Injectors: Maintenance, Troubleshooting, and Tips
If an injector's balance rate is significantly outside this range, it may indicate a problem with that injector Note down the balance rates for each injector for reference
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