Im a truck driver and I only had time to get 2 spark plugs changes the last time I was home. I of home today and got the other 2 changed. 1 and 4 the truck ran better when I changed just 2. But now the truck will not start any ideas. Thanks for info

 

Get the wires on wrong or did you pull the coil wire out when leaning over the fender getting at #4 plug

I have pulled it out enough to not start but you can`t tell to you go to push it back in.

 

I checked that! Still not starting