What causes a Caravan 2000 cylinder misfire?

Answer 1

Misfires can occur in any internal combustion engine and they are cause by any of these three things:

-No spark (For SI engines)

Gasoline engines need spark to ignite the fuel air mixture in the cylinder.

-No Fuel

This one is pretty self explanatory

-No Compression

All thermo engines need compression to promote combustion and to increase efficiency

Suggestions:

You probably learned about this misfire from the car's onboard computer. This means that you should check each of the above systems and pay careful attention to those lines/wires/gaskets that are near the troublesome cylinder. Inspect the spark plug and wire for that cylinder. Check for adequete fuel pressure and compression. I would check compression last because your car is relatively new and you shouldn't have too much loss of compression yet (unless you've logged 200,000 miles already). Also don't forget that fuel injectors act like electronic valves and if one fails it won't get any fuel to its respective cylinder, even with fuel pressure that's within specifications.