Hello. I bought a 2005 F-150 from a junkyard. It was running fine, just needed driveshaft, tires, brakes, muffler, and a mirror. After 18 months of running fine it started shaking. I am not a mechanic, so I went on YouTube. I replaced both VCT valves, plugs COPS, EVAP purge valve, put fuel injector cleaner in the gas tank, cleaned the MAF unit. It still vibrates in park, neutral, and drive. I don't know what else to do. Originally, I had codes for evap leak, misfires, lean Bank 2 - but they haven't come back after I cleared them...Any help is appreciated.

 

Not sure this applies to 2005 but it probably does. You need to do drive cycles before some codes will be generated. With a fully warmed up engine gently accelerate to 70 and then without touching brake coast down to 45. Do that 3 or 4 times and see what results you get.

 

It could be a faulty motor mount. I'd check them first.