Originally Posted by davie200
Well going to find out about using tuner and having a catastrophic engine failure. I have a 2016 Georgetown XL sitting on a 2015 chassis. The number 5 piston supposedly hit the spark plug and broke the piston and connecting rod and dumped them in the oil tank. The engine before that was running smooth with no warning. It made a loud hiss like a air hose blew and engine died. It only has 25500 on it and I was real careful of keeping it from doing to many high RPM climbs but you have to sometimes.
Ouch...sorry to hear about that kind of failure!
I'm not a mechanic, but based upon what I've read about tuners, I doubt that the modification caused your problem If I'm correct, the 5 Star Tune typically helps to reduce high RPMs. By any chance did you observe that the tune resulted in an increase in the RPMs? Again....I don't know squat about engine mechanics...just asking a couple of questions.
I think this could just be a case of coincidence. And, I wonder if an analysis
of the piston and connecting rod will show that there was a defect or some type of wear that had been starting to fail for some time. Or you may never know. All you can do is decide to avoid the tune after repairs, or continue with it.
Retired but busier than ever!
2012 Newmar Bay Star 3302
5 Star Tune, SumoSprings, Roadmaster Steering Stabilizer, Blue Ox Avail
Brake Buddy, 2015 Chevy Malibu