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Heater Coolant Heater Replacement


2414207

Callout

Component Name

Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.

The High Voltage Disabling procedure will perform the following tasks:

   • Identify how to disable high voltage.
   • Identify how to test for the presence of high voltage.
   • Identify conditions under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.
Failure to follow the procedures exactly as written may result in serious injury or death.

Preliminary Procedure

  1. Disable hybrid high voltage system. Refer to High Voltage Disabling and High Voltage Enabling .
  2. Remove the intake manifold. Refer to Intake Manifold Replacement .
  3. Remove the heater outlet hose. Refer to Heater Outlet Hose Replacement .
  4. Remove the heater inlet hose. Refer to Heater Inlet Hose Replacement .
  5. Disconnect the electrical connectors from the heater coolant cooler. Refer to High Voltage Connectors .

1

Heater Coolant Heater Nuts (Qty: 5)

Caution: Refer to Fastener Caution in the Preface section.

Tighten
9 N·m (80 lb in)

2

Heater Coolant Heater

Note: Replace corroded hose clamps and brackets.

   


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