Hey all, my 2018 F150, 94K miles, 5.0, 10 speed trans, 3:31 axles, has developed a vibration from around 55 to 65 mph. Is there anything I should pay particular attention to when trying to isolate the culprit responsible for the problem?
The truck sat for a week in my gf's garage. I took it home and thats when I noticed the performance issue. I thought maybe a tire, or a vacuum leak, coil pak, spark plug, driveshaft? A friend thought phasers or transmission. Transmission since he had the dealer reprogram his.
All I know is its not right. I'm going to hate to take it to the Ford dealer for repairs because that will blow.
SO, if anyone has anything I can check out, I'd really appreciate it.