For more information refer to Specifications (303-07 Engine Ignition - 4.0L)
For more information refer to Specifications (303-07 Engine Ignition - 4.4L)
For more information refer to Spark Plugs (303-07 Engine Ignition - 4.0L)
For more information refer to Spark Plugs (303-07 Engine Ignition - 4.4L)
2. Every 3 years or 72,000 km - heavy duty vehicles: Replace spark plugs.
For more information refer to Specifications (303-07 Engine Ignition - 4.0L)
For more information refer to Specifications (303-07 Engine Ignition - 4.4L)
For more information refer to Spark Plugs (303-07 Engine Ignition - 4.0L)
For more information refer to Spark Plugs (303-07 Engine Ignition - 4.4L)
3. Every 6 years or 144,000 km - 4.0L V6 and 4.4L V8 engines - North American vehicles: Replace spark plugs.
For more information refer to Specifications (303-07 Engine Ignition - 4.0L)
For more information refer to Specifications (303-07 Engine Ignition - 4.4L)
For more information refer to Spark Plugs (303-07 Engine Ignition - 4.0L)
For more information refer to Spark Plugs (303-07 Engine Ignition - 4.4L)
4. Every 6 years or 144,000 km - 4.0L V6 engines - vehicles for other regions running on UNLEADED fuel, but not in severe conditions: Replace the spark plugs.
For more information refer to Specifications (303-07 Engine Ignition - 4.0L)
For more information refer to Spark Plugs (303-07 Engine Ignition - 4.0L)
5. Every 7 years or 168,000 km - 4.4L V8 engines - except North American vehicles: Replace spark plugs.
For more information refer to Specifications (303-07 Engine Ignition - 4.4L)
For more information refer to Spark Plugs (303-07 Engine Ignition - 4.4L)
NOTE: 4.0L V6 engines may be equipped with copper or platinum spark plugs.
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