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Here is the spark plug removal procedure from the factory service instructions:
CAUTION: Note routing of secondary ignition cables before removing. Failure to route cables properly may result in radio interference, ignition cross fire, or ignition short to ground.NOTE: Keep plugs in order removed. A plug, that looks different from the rest, could be a problem indicator. SPARK PLUG #3 AND #5 REMOVAL
SPARK PLUG #1 REMOVAL
OTHER PLUGS REMOVAL
CAUTION: When replacing spark plugs because of a high speed miss condition; wide open throttle operation should be avoided for approximately 80 km (50 miles) after installation of new plugs. this will allow deposit shifting in the combustion chamber to take place gradually and avoid plug destroying splash fouling shortly after the plug change.
Replacing the plugs should take an experienced Chrysler technician 1.6 hours, according to the labor guide. If you are unfamiliar with this repair, a more realistic labor time would be somewhere around 3 hours.
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