However, you cannot determine the distributor cap wire placement solely from the firing order. The distributor cap's terminal arrangement varies even within the same engine family. You must consult a wiring diagram specific to your Durango's year, engine size (5.2L or 5.9L), and even possibly the specific build date.
Here's why simply using the firing order isn't enough:
* Distributor Rotor Position: The rotor inside the distributor rotates, and its position relative to the cap terminals dictates which cylinder fires next. The firing order only tells you the sequence; it doesn't show how the cap is wired to match the rotor's position.
* Variations within Model Year: There might be slight differences in the distributor cap wiring depending on the manufacturer and specific options in the vehicle.
To find the correct wiring:
1. Consult your owner's manual: It might have a wiring diagram.
2. Use a repair manual: A Haynes or Chilton manual for your specific Durango year and engine will have detailed wiring diagrams.
3. Look up a wiring diagram online: Websites like Mitchell1, AllDataDIY (subscription required) or even some forums might have wiring diagrams you can search based on your specific VIN.
4. Contact a Dodge dealership or mechanic: They can provide this information or access diagrams specific to your VIN.
Caution: Incorrectly wiring the distributor cap can severely damage your engine. It's best to be absolutely certain before starting your engine.