Up until a few months ago my 2008 chevy avalanche has run great and i have had no major problems. I am the original owner and i've had regular maintenance on it since i bought it. A few months ago the service traction control/stabiltrack codes started flashing with a blinking engine light with it. I immediately stopped driving the truck and have been trying to self diagnos and fix the problem myself. The more i research the problem it seems like it can be a whole laundry list of things and nobody has 100% fix for it. The scanner says a misfire on cylinder 6. I've changed the spark plugs and changed coil packs to no avail. I could change the injector but I'm trying to hold off unless i have to since I've read many people changed it out and it didn't fix the problem. I've read there is a extended warranty for this problem on a few forums and wondering how to private message a admin to find out if my truck is eligible for this. I have a 2008 avalanche VIN is 3GNEC12068G292784 with approximately 105k miles. I am the original owner like i said and it has been well maintained. Please help i don't have 1000s of dollars to pour into a fix that may or may not fix my truck. Was hoping to get a few 100k out of the truck. Hopefully i still can. Thank you, Matt Amandola Townsend De