Isuzu Ascender 2003-05

Spark Plug Wires

Print

Inspection & Testing



Check ignition wires for chafing and cracks. Verify all connections are secure and tight. Ohm ignition wires for high resistance.

Removal & Installation



4.2L Engine

Ignition coils are directly on top of spark plugs. No spark plug wires are required.

5.3L Engine
  1. Disconnect the negative battery cable.
  2.  
  3. Carefully remove spark plug wire from ignition coil.
  4.  
  5. Carefully remove spark pug wire from spark plug.
  6.  

To install:

  1. Install small amount of dielectric grease to both ends of spark plug boots.
  2.  
  3. Carefully install spark plug wire to ignition coil.
  4.  
  5. Carefully install spark pug wire to spark plug.
  6.  
  7. Connect the negative battery cable.
  8.  

 
label.common.footer.alt.autozoneLogo