u/Emergency-Land1875

I changed the spark plugs and wires on the car, I noticed two of the spark plug (cylinder 3 and 5 I believe) wire came out with no effort unlike the others.

I replaced the wires along with the plugs, and the new wires felt loose when I put them on (again on those same two) they come out with no effort unlike the others that are snug in place.

Cylinder 3 starts to misfire after a short drive. The wire comes loose. Why would that happen? Do I need to order a new set of wires just for that one spark plug? Or can I do something else to keep it in place. I don’t think zip ties will work because it gets too hot and will probably melt.