- Apply a coating of lubricant to the O-ring seal and the cleaned
surface of the plug opening in the block. Use a water spray resistant, high-temperature
grease lubricant (GM P/N 9985164 or equivalent).
Notice: The block heater element must not touch the engine block inner wall
in the installed position or damage to the engine block and the block heater
could result.
- Install the engine block heater into the engine
block. Position the heater element 90 degrees perpendicular (1) to the crankshaft
centerline.
- Push the engine coolant heater into the block
until the outer edge is flush with the engine block surface.
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.
- Tighten the bolt
until both locking wings draw tight against the inner wall of the engine block.
Tighten
Tighten the bolt to 1.9 N·m (17 lb in).
Notice: The heater cord must not touch the engine, hot pipes, manifold, or any
moving parts. Route the cord to the left front of the engine compartment securing
with tie straps as necessary to prevent damage.
- Install the heater cord to the coolant heater. Route and secure the
heater cord through the engine as shown.
- Route and secure the heater cord across the engine
cowl as shown.
- Route and secure the heater cord to the VCM wiring
harness.
- Fill the reservoir with engine coolant. Refer to
Cooling System Draining and Filling
.
- Inspect the system for leaks.
