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05 F250 SD 6.0 Missing on a Cylinder
Okay, thanks for reading this first off everyone. Here's my problem, I recently went a little to long on an oil change, about 20k. But no miss at all before I got back home. Then changed the oil to a fresh 12 quarts of motorcraft 15w40 along with 3 quarts of Lucas oil treatment. It recommended 1 per every 4 of oil, anyhow had always used it but at a rate of 14 qts conventional and 1 Lucas not 3. So less than 25 miles later i shut it off and the miss started the next time I started it cold and never went away.
Now per a diesel mechanics recommendations I've heated up the engine and drained out that oil and installed 5w40 rotella t6 synthetic with no Lucas. The miss was still there and now its coming and going. The same mechanic said these injectors don't go bad they just get clogged up and dirty and need cleaning sometimes. All I know is I as a vehicle buyer/owner shouldnt have to pull the valve covers to physically clean injectors every 50k miles.
Same mechanic says run some seafoam with next tank of fuel and if that doesn't clear it up that I'm left paying a dealer shop $160 to run the injector test and let me know which one is acting up. Any good advice or knowledge of place to go in St Louis to get injector diagnostics done please let me know, I'm a 1st time diesel owner and evidently picked a great one to learn on.
Last edited by PowerStroker72; 12-28-2012 at 09:14 AM.