Couple years back, we had a brand new 6.4 SRT Challenger at work. Bright yellow, and which I nicknamed Big Bird after a few weeks of it being worked on. Someone went for test drive and check engine light came on. Other Tech got it, only with about 50 miles on it. Oil pressure performance code. Oil in it looked bad....very off color...and just weird looking. Contacted tech line, and they had us change oil and filter, and send them a sample. Test drive later , code back. I said it needs an engine. I will say it was quiet.....but oil pressure was on low limit. Nope Chrysler has us change oil sender , take pressure readings, change oil again,then PCM. I kept saying.....needs an engine.....nope they didn't think so. As foreman, I drove it home each night, after other tech did something too it each time . Code always returned. Last night I drove it after PCM, I start it to go home(50 miles), and I notice mileage is 392....wow whats the chances? Good or bad omen?? lol
Mil light came on half way home(shocker).On way home, traffic was heavy on highway, but about a mile before my exit I got a long open stretch so I layed into it hard. Probably a min or 2 of WOT. Worked ok. Pulled off , and as I was waiting at end of exit ramp an old slow truck drives by and I pull out behind him. I can see a long way ahead(country road) so I lay on it hard ,and it drops several gears and flashes to almost redline. Just as I do, I can tell something is wrong.....it makes lots of noise(those 392s sounds real nice WOT), but feels really flat/low on power........oh oh..... JUST as I think I better get out of the throttle, and right beside the old truck , it (found out later) vaporizes 2 pistons and rods. and shoves them out the block/down through the pan. Boy did it sound ugly! HUGE cloud of smoke, and parts out the back. After I pulled over, a few minutes pass, thankfully, no flames from all the oil.....the old guy in the old farmtruck passes by.....slowly shaking his head
So! it finally got an engine
Even cat converters, as they were full of engine bits. Expensive warranty claim that one!