After my coolant was flushed and filled up again my car doesn't want to start now.
uh oh, you're ignition wires kinda are leaking high-voltage. They must have used a hose cleanin it all up. Take a can of WD-40 spray the ignition wires and receptacles, it is non-conductive, in fact you WANT it to go-in-between and chase away any water (WD=water displacer). When you are content the car is fine, invest in some new silicone wires. remember they are supposed to have resistance straight wire would not work-
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