2009 Chrysler 300 LXFACTORY OEM SERVICE PROCEDURE

Spark Plug: Description: Description

The V6 engines use platinum resistor spark plugs. They have resistance values of 3,500 to 20,000 ohms when checked with at least a 1000 volt tester. For spark plug identification and specifications, see SPARK PLUGSΒ .

Do not use an ohm meter to check the resistance of the spark plugs. This will give an inaccurate reading.Β 

When the spark plugs have a single or double platinum tip they have a recommended service life of 100,000 miles for normal driving conditions. The spark plugs have a recommended service life of 75,000 miles for severe driving conditions. For more information about maintenance schedules, refer to MAINTENANCE SCHEDULES . A thin platinum pad is welded to both or just the center electrode end(s). Extreme care must be used to prevent spark plug cross threading, incorrect gapping and ceramic insulator damage during plug removal and installation.

CAUTION: Cleaning of the platinum plug may damage the platinum tip.
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:

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