2012 Jeep Compass 2WD L4-2.4LFACTORY OEM SERVICE PROCEDURE

Spark Plug - Installation






INSTALLATION

Factory service manual diagram





CAUTION: Handle the spark plugs with care. Do not drop or force the spark plugs into the wells, damage to the electrodes and/or porcelain body may occur. Always start each spark plug by hand in order to avoid cross-threading the spark plug in the cylinder head.Always tighten spark plugs to the specified torque. Too much or not enough torque will cause damage to the cylinder head and/or spark plug and may lead to poor engine performance.

1. Install each spark plug to the cylinder head. Tighten spark plugs to 27 Nm (20 ft. lbs.).

Factory service manual diagram




2. Install ignition coil onto spark plug.

Factory service manual diagram




3. Install ignition coil mounting bolt. Tighten to 9 Nm (79.5 in. lbs.).
4. Connect ignition coil electrical connectors.
5. Connect the negative battery cable.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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