Hey guys, been a 'finder owner for a long long time. Had an issue the other night that has me scratching my head. Utilized the winch for the 1000th time, and when I did the engine quit. Basically every time I would spool in or out, while the truck was idling, it would die. Popped the hood, and held throttle to around 3K RPM and completed the task. Noting that at times it would sound like it was going to die, so I would have to adjust throttle to compensate. Put everything back to normal and all was well. A few days later: Vehicle was running superb as usual, came to a stop at a traffic light, took off and she stumbled, and began to back fire and idle very rough if I pressed on the accelerator. I could barely make it to 25 MPH and found a parking lot. Popped the hood and checked everything I could, nothing out of the ordinary. It had been since the last oil change that I had run a seafoam treatment, and once I limped it home, I did the "through the intake" treatment as I usually do. Only this time I noted that the driver side exhaust manifold was leaking seafoam to the ground. Telling me that either a valve seat is bad, or worse. Where would you start? Suggestions? Next day off I am going to do a compression check, and go from there. Really feel like it is a valve issue, but I value the input from several of the veterans on this forum, and welcome your responses. I don't "mud," cross rivers or bodies of water. Most of my driving is on road, and occasionally off road to a job site, but dust is the only enemy. I work out of this truck, and it has been very dependable. I regularly service the vehicle, and talk nicely to it all the time. I mean just the other day we had a candle light dinner, and watched Netflix. Any help will be appreciated.