When it's raining or damp out my Ram is really hard to get started. Probably getting moisture somewhere. My first step I thought would be spark plug wires or distributor cap. Where should I start and in what order?

 

it would be easier if you explain to us what is the sounds it does, what the reaction to the turn of the key. that would be a heck of a lot easier

 

mine did the same thing.. if it was a heavy rain and very damp out it would not start

i fixed it by getting all new wires cap rotor and plugs

water is getting inside your distributor cap.. replace it and get a tune-up

 

remove the old distributor cap and replace with a new one, along with the rotor. I prefer brass contacts.

When you reinstall, wipe some dielectric grease on the tip of the rotor, the top of the rotor, the button and terminals under the cap, a good helping on the terminals on the top of the cap, and then a ring around the bottom of the cap where it sits on the distributor (this last one keeps moisture from getting in there in the first place). Give the terminals of the spark plugs (the side the wires go on, not the tip that goes in the engine), and the coil a good coating of dielectric grease as well. Then unplug the coil and put dielectric grease in the plug as well. DO NOT USE REGULAR GREASE! If it that don't fix it, it ain't the ignition components. you might blame the starter or possibly the battery terminal connections.