How To Change The Spark Plugs In A Chrysler 300C: Tips And More!

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The Chrysler 300C features a 5.7-liter HEMI engine that uses 16 spark plugs instead of 4, 6, or 8. There are two plugs for each cylinder. If you plan yourself change the spark plugs on your chrysler 300c, you should set aside an entire afternoon for this task. Although changing the spark plugs on this vehicle is not difficult, it is time consuming.

Steps to Change the Spark Plugs on a Chrysler 300C

How to Remove Spark Plugs on a Chrysler 300C
Chrysler 300 in black

The steps you must follow to change the spark plugs on a Chrysler 300C are as follows:

  1. Remove the hex screws that secure the plastic cover to the motor.. Lift the lid and set it aside.
  1. Locate the coil plug sets on each side of the engine block. Remove the electrical connector from the set of sockets closest to the passenger. To remove the electrical connector, slide the red tab to the left, then press the center clip and pull up on the connector.
  1. Pull the secondary jumper cable connected to the second plug on the coil pack. Put the trunk aside.
  1. Locate the two 10mm bolts that hold the coil pack to the engine block. Remove these bolts with a ratchet wrench and 10mm socket. Gently lift to release suction and dislodge coil pack.
  1. Connect a 5/8-inch spark plug to an extension bar, and link the bar to the ratchet. Remove the two spark plugs from the engine holes by turning them counterclockwise.
  1. Space the new spark plugs 0.045 inches with a gapping tool. Put anti-seize oil on the threads of the new spark plugs. Insert the new spark plugs into the holes and hand-tighten them. Further tighten the plugs with a ratchet wrench.
  1. Replace the coil pack and tighten the bolts. Reattach the secondary jumper cable and press it into place. Position the electrical connector and press down until the center tab locks. Slide the red tab to the right to lock it in place.
  1. Repeat the process with each of the other seven coil packs.

Advice

To change the spark plugs on a Chrysler 300C you must know:

  • Anti-seize oil is necessary to prevent melting in different metals. Without this oil, the spark plugs can become permanently fused to the engine block, making removal impossible.

Caveat

You should keep in mind the following:

  • Always make sure the spark plug is fully seated in the spark plug hole when removing or replacing the plugs. The top of these plugs is ceramic so they can break easily.

The Chrysler 300C features a 5.7-liter HEMI engine that uses 16 spark plugs instead of 4, 6, or 8. There are two plugs for each cylinder. If you plan yourself change the spark plugs on your chrysler 300c, you should set aside an entire afternoon for this task. Although changing the spark plugs on this vehicle is not difficult, it is time consuming.

Steps to Change the Spark Plugs on a Chrysler 300C

How to Remove Spark Plugs on a Chrysler 300C
Chrysler 300 in black

The steps you must follow to change the spark plugs on a Chrysler 300C are as follows:

  1. Remove the hex screws that secure the plastic cover to the motor.. Lift the lid and set it aside.
  1. Locate the coil plug sets on each side of the engine block. Remove the electrical connector from the set of sockets closest to the passenger. To remove the electrical connector, slide the red tab to the left, then press the center clip and pull up on the connector.
  1. Pull the secondary jumper cable connected to the second plug on the coil pack. Put the trunk aside.
  1. Locate the two 10mm bolts that hold the coil pack to the engine block. Remove these bolts with a ratchet wrench and 10mm socket. Gently lift to release suction and dislodge coil pack.
  1. Connect a 5/8-inch spark plug to an extension bar, and link the bar to the ratchet. Remove the two spark plugs from the engine holes by turning them counterclockwise.
  1. Space the new spark plugs 0.045 inches with a gapping tool. Put anti-seize oil on the threads of the new spark plugs. Insert the new spark plugs into the holes and hand-tighten them. Further tighten the plugs with a ratchet wrench.
  1. Replace the coil pack and tighten the bolts. Reattach the secondary jumper cable and press it into place. Position the electrical connector and press down until the center tab locks. Slide the red tab to the right to lock it in place.
  1. Repeat the process with each of the other seven coil packs.

Advice

To change the spark plugs on a Chrysler 300C you must know:

  • Anti-seize oil is necessary to prevent melting in different metals. Without this oil, the spark plugs can become permanently fused to the engine block, making removal impossible.

Caveat

You should keep in mind the following:

  • Always make sure the spark plug is fully seated in the spark plug hole when removing or replacing the plugs. The top of these plugs is ceramic so they can break easily.

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