Engine vibration NOT mounts
I have an 04 ZX5 automatic with the Zetec engine 135,000 kms. It started to vibrate about 6 months ago, I did the research and replaced all three mounts with factory mounts, very expensive and didn't solve the problem. I then did a tune up with Motocraft spark plugs and wires, oil and filter and air filter. Vibration is still there. The engine only vibrates at idle. It doesn't matter if I am in neutral, park, drive or reverse. The engine vibrates. The second I touch the gas, the vibration is gone. When looking at the engine, I can see it vibrate and when I put my hand on the engine I can feel it vibrate. It has only been doing it for about 6 months and some days are worse than others. I am at a loss on this one.