GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2001 🢒 Catera 🢒 Engine 🢒 Engine Controls - 3.0L (L81) 🢒 Spark Plug Replacement

Removal Procedure
  1. Remove the coil pack. Refer to Ignition Coil Replacement - Bank 1 and Ignition Coil Replacement - Bank 2 .
  2. Clean the spark plug recess area with low pressure air.

    3. Object Number: 289889 Size: SH
  3. Remove the spark plugs from the cylinder head.

Installation Procedure
  1. Gap the spark plugs.

    2. Specification
    Spark plug gap: 0.9-1.1 mm (0.035-0.043 in).


    Object Number: 289889 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the spark plugs to the cylinder head.

    3. Tighten
    Tighten the spark plugs to 25 N·m (19 lb ft).

  3. Install the coil pack. Refer to Ignition Coil Replacement - Bank 1 and Ignition Coil Replacement - Bank 2 .