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How to Replace Spark Plugs in a Dodge Durango

by Contributor

The Dodge Durango spark plug is designed to last between 60,000 and 100,000 miles. The Dodge Factory Service Manual states you should only replace your spark plugs with a copper electrode with the same heat range and number as on the original plugs installed in the SUV to ensure safe operation of the vehicle.

Find the spark plug wires and allow the engine to cool. The spark plug wires are located on the side of the Durango model's engine.

Grab the spark plug wire by the boot. Twist and pull back on the spark plug wire to remove it from the spark plug.

Insert the socket into the heat shield and remove the old spark plug from the engine. Turn the socket to the left to unscrew the spark plug.

Smear a generous amount of anti-seize lubricant on the threads of the new spark plug.

Insert the new spark plug into the heat shield and the cylinder well and tighten it manually.

Test the tension on the spark plug to make sure it is between the numbers listed on the spark plug's package.

Attach the wire to the spark plug and turn it slightly to lock it into place. Pull back on the spark plug wire by the boot to make sure the lock is secure. Repeat Steps 2 through 6 for the remaining spark plugs. Only remove one spark plug at a time to reduce any confusion about where a spark plug wire needs to go.

Warning

  • The spark plug on a Dodge Durango is equipped with a heat shield to protect spark plug boots. Do not remove this shield when removing the spark plug.

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