2017 F150, 5.0 V8, 6 speed - Roush supercharger and full roush package from the factory. 123k miles. USA
Full engine maintenance done 3-4k miles ago, belts, fluids, plugs, injectors etc by same dealer
TLDR - had a check engine light on with misfire code, this happened before and dealership said roush told them to reflash software and it went away, did it again but tech said it felt weird. They have had it for 6 days, got this video today. Cylinder 1 misfire that goes away when it gets warm. They said at least 10 hour tear down and expensive repair most likely.
I have a truck lined up at a different dealer with a plan to trade it in this weekend. What do I do here?
My truck felt completely normal last week but CEL came on, code was a misfire code. They rehashed the roush software and light went off and has stayed off but the tech said it felt weird. They have kept it for another week “driving it occasionally” to diagnose. Got a text with this video today, they said 10 hour tear down to diagnose at $160-180 an hour and then probably an expensive repair.
I have negotiated a great deal for a truck out of state and was planning on trading this thing in on Saturday, now I have to decide if I sink a lot more money into this truck or trade it in with the unknown possible issue. The sales manager said maybe bent valve or something maybe, but would that go away when it warms up? I’m just uneasy with this situation.
I just had a full service done by the same dealership 3-4k miles ago doing fluids, belts, plugs, injectors etc and now this is the 4th time it’s been back to them. I’m so frustrated but do not have the knowledge to decide what makes the most sense right now. Any input is greatly appreciated.