Spark Plug: Description: Description

2009 Jeep Wrangler Unlimited Rubicon, AutomaticSECTION Description

PLATINUM PLUGSΒ 

Fig 1: Platinum Pads
GC0130777Courtesy of CHRYSLER LLC
1 - APPLY ANTI-SEIZE COMPOUND HERE ONLY
2 - PLATINUM SPARK SURFACE

The V6 engine uses platinum resistor spark plugs. They have resistance values of 6,000 to 20,000 ohms when checked with at least a 1000 volt tester.

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

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

Apply anti-seize compound to spark plug threads only at point (1).

When the spark plug has a single or double platinum tip (2), a thin platinum pad may be welded to both, or just the center electrode end(s).

Fig 2: Setting Spark Plug Electrode Gap
GC0130778Courtesy of CHRYSLER LLC
1 - TAPER GAUGE
  1. Extreme care (1) must be used to prevent spark plug cross-threading, mis-gapping and ceramic insulator damage during plug removal and installation.
RENDER: 1.0x

NO RELATED

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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.