Start with a cool engine, do not do this job with the engine hot. The head is made of aluminum and can be easily damaged when hot.
Remove the plastic engine cover. Using an Allen wrench remove the coil packs (some models do not require the Allen wrench). You can now see the plugs inside the head. Using the appropriate spark plug socket remove the spark plugs.
Check the gap on your new spark plugs and start screwing them in by hand to prevent cross threading the plugs. You'll have to use an extension to get the plug down into the head. Use a torque wrench to tighten to the appropriate torque, overtightening can ruin the aluminum head.
The job should take 45 minutes to an hour.
Disconnect the battery, remove the engine cover, remove the spark plugs wires and boots, and remove the spark plugs. Put in the new spark plugs, replace the spark plug wires and boots, replace the engine cover, and connect the battery.
Remove the spark plug wires from your 2002 Mercury Grand Marquis spark plugs. Remove the spark plugs by turning them to the left with a deep well 5/8 socket. Reverse the process to install the new spark plugs.
To change spark plugs on a 5.9 2002 Dodge Ram 1500, locate the old spark plugs. These are located at the end of the 8 wires inside the vehicle's bonnet. Remove the old spark plugs and replace with new.
Disconnect the battery, remove the spark plug cables and the boots and remove the spark plugs. Put in the new spark plugs, replace the cables and boots, and then connect the battery.
Replacing spark plugs is pretty simple. Disconnect the battery, remove the cover and cables, remove the old spark plugs, put in the new spark plugs, put the cover and wires back on the spark plugs, and reconnect the battery.
Generally, to replace spark plugs on a Subaru vehicle, the spark plug boot should be removed. Then, the old spark plugs should be removed using a socket wrench, and replaced with new ones.
Check your spark plug connections and spark plugs. If necessary, replace them.
Replace Spark plugs Replace Wires Replace fuel Filter Replace PCV Valve Replace air Filter
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