Underneath the resonator box (the black plastic box right before the throttle body).
Once the resonator box is removed the spark plugs are located underneath the small rectangular aluminum heat sinks. Remove the long bolt and pull the entire assembly up and out.
The Spark Plugs are located under the resonator box in the center of the engine (its the rectangular black box on top of the engine)
take off the plastic cover and under where the silver cover on the engine says ecotech is where the spark plugs are located
There are six plugs. The plugs are located at the end of the spark plug wire. There are 2 banks of plugs. One bank you can see and the other bank is located ib the back of the engine.
Screwed into the head or heads on a V6.
How to change the spark plugs
where are the spak plugs located on the 2005 ascender?
NGK platinum plugs
Check the Vehicle Emission Control Information ( VECI ) decal located in the front of the engine compartment ( it will show the type of spark plugs to use and the spark plug gap )
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment ( it will show the type of spark plugs to use and the spark plug gap )
Screwed into the head. Follow the plug wires.
Both V6 engines have 6 spark plugs
Check the Vehicle Emissions Control Information ( VECI ) decal , located in the front of your engine compartment ( it will show the type of spark plugs to use and the spark plug gap )