Introduction

Replacing the spark plugs in your Malibu can keep it running strong. New spark plugs will produce a stronger spark than older spark plugs allowing your engine to run smoother and more efficient.

Image 1/3: These four bolts should be torqued to 18 ft-lbs when putting the spark plug cover back on. Image 2/3: These four bolts should be torqued to 18 ft-lbs when putting the spark plug cover back on. Image 3/3: These four bolts should be torqued to 18 ft-lbs when putting the spark plug cover back on.
  • Use the 1/2" socket to loosen and remove the four bolts and washers on the spark plug cover labeled 2.4L Twin Cam.

    • These four bolts should be torqued to 18 ft-lbs when putting the spark plug cover back on.

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Image 1/3: Be careful while disconnecting the ignition coil electrical connector as it may break. Image 2/3: Be careful while disconnecting the ignition coil electrical connector as it may break. Image 3/3: Be careful while disconnecting the ignition coil electrical connector as it may break.
  • With a flathead screwdriver remove the ignition coil electrical connector on the right side of spark plug cover.

  • Be careful while disconnecting the ignition coil electrical connector as it may break.

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Image 1/2: Image 2/2:
  • Remove the spark plug cover.

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Image 1/1: Use compressed air to clear any debris from the area around the spark plugs.
  • When working with compressed air, wear safety glasses to protect your eyes from flying debris.

  • Use compressed air to clear any debris from the area around the spark plugs.

    • Any particles that fall into the cylinder could cause serious engine damage.

  • Use a 5/8" spark plug socket with an extension to loosen and remove the spark plugs.

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Image 1/3: If it needs to be widened, use a gap setter to increase the size of the gap until it reaches the desired width. Image 2/3: If it needs to be widened, use a gap setter to increase the size of the gap until it reaches the desired width. Image 3/3: If it needs to be widened, use a gap setter to increase the size of the gap until it reaches the desired width.
  • Before installing the new spark plugs check that the spark plugs' gap is between 0.048 and 0.052 inches.

  • If it needs to be widened, use a gap setter to increase the size of the gap until it reaches the desired width.

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Image 1/1: Place the spark plug into the cylinder using the socket and hand tighten the spark plugs as much as possible.
  • Wedge the new spark plugs into a 5/8'' spark plug socket.

  • Place the spark plug into the cylinder using the socket and hand tighten the spark plugs as much as possible.

  • Tighten the spark plugs to 13 ft-lbs with a torque wrench.

  • Do not over tighten spark plugs. This could strip out the threaded holes in the head.

You mention all but the plug size or Pat number

margaret groot-koerkamp - Reply

Conclusion

To reassemble your device, follow Steps 1-3 in reverse order.

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Sank Yang

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Cal Poly, Team 9-15, Amido Fall 2012 Member of Cal Poly, Team 9-15, Amido Fall 2012

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