Description - Platinum Plugs

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

The V6 engines use platinum resistor spark plugs. They have resistance values of 6,000 to 20,000 ohms when checked with at least a 1000 volt tester. For spark plug identification and specifications, Refer to SPECIFICATIONS .

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

When the spark plugs use a single or double platinum tips and they have a recommended service life of 100,000 miles for normal driving conditions per schedule A in this article. The spark plugs have a recommended service life of 75,000 miles for severe driving conditions per schedule B in this article. A thin platinum pad is welded to both or just the center electrode end(s) as shown in Fig 1. Extreme care must be used to prevent spark plug cross threading, mis-gapping and ceramic insulator damage during plug removal and installation. See Fig 2.

Fig 1: Platinum Pads

Courtesy of DAIMLERCHRYSLER CORP.

1 - APPLY ANTI-SEIZE COMPOUND HERE ONLY

2 - PLATINUM SPARK SURFACE

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

Fig 2: Setting Spark Plug Electrode Gap

Courtesy of DAIMLERCHRYSLER CORP.

1 - TAPER GAUGE