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Instructions for Changing Spark Plugs

Model: Jeep Grand Cherokee WK, MK 3, WH - Years 2004-2010
Part: Spark plugs

If you need to change the spark plugs, first remove the air filter. To do this, loosen the two clamps and the support bar secured with two bolts on each side. Now disconnect the connectors attached to each of the six coils and then unscrew the screws to remove them. At this point, insert the socket wrench and unscrew each spark plug one by one. When installing the new spark plugs, remember to place a washer on each spark plug. After tightening them by hand, tighten them further by half a turn according to the instructions on the box. Now, simply reassemble the previously removed parts. Car model: Jeep Grand Cherokee 3.7L V6 Year: 2007
Required tools: T or socket wrenches of 8 and 10 mm, spark plug wrench.

Updated on 11 February 2026 by ScegliAuto

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