Chosen Solution
98 Explorer XLT 4.0 SOHC CRANK NO START new battery spark plugs ckp IAC plug wires n have fuel n spark
Could be a hand full of things but first do easy fixes. Check the corrosion at the battery terminals and deep into the wires themselves. When clean, add barrier to protect bare wire from oxygen. (Vasoline will work if nothing else handy).
Also double check cold cranking amps. Also read up on physics behind charging car battery.
