2021 Jeep Grand Cherokee TrackhawkFACTORY OEM SERVICE PROCEDURE

Coil, Ignition: Installation: 6.2L

CAUTION:

Do not apply a silicone based grease such as Mopar® Dielectric Grease to the ignition coil rubber boot. The silicone based grease will absorb into the boot causing it to stick and tear.

  1. Place a small, 360° bead of Uniflor 8172  lubricant (1) along the inside opening of the coil boot approximately 1 to 2 mm from the chamfer edge but not on the chamfered surface.
    GC0170431Courtesy of CHRYSLER GROUP, LLC
  2. Install the ignition coil into cylinder head and push both spark plug boots onto each spark plug.
    NOTE:

    It will be necessary to carefully reposition the A/C Lines for clearance, if installing the left side coils.

  3. Install the two coil mounting bolts (1) and tighten to the proper specifications. Refer to TORQUE SPECIFICATIONS  .
  4. Connect the ignition coil wire harness connector (2) to the coil and lock the connector.
  5. The following is necessary only if the right side ignition coils were removed.
    • Install the Power Distribution Center (PDC) onto the mounting bracket and securely fasten the wire harness.
    • Install the coolant tube retainer.
    • Install the supercharger coolant bottle reservoir onto the mounting bracket. Refer to RESERVOIR, COOLANT, INSTALLATION .
  6. The following is necessary only if the left side ignition coils were removed.
    GC0170121Courtesy of CHRYSLER GROUP, LLC
  7. Install the engine cover(s) (1).
  8. 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.