Engine Block Heater: Service and Repair

ENGINE BLOCK HEATER
REMOVAL

WARNING: RISK OF INJURY TO SKIN AND EYES DUE TO SCALDING FROM HOT COOLANT. DO NOT OPEN THE COOLING SYSTEM UNLESS THE TEMPERATURE IS BELOW 194-F (90-C). WEAR PROTECTIVE CLOTHING AND EYE WEAR. RISK OF POISONING IF COOLANT IS SWALLOWED. STORE COOLANT IN PROPER AND APPROPRIATELY MARKED CONTAINERS.

1. Disconnect the negative battery cable.
2. Drain the cooling system.
3. Record the location and snip the wire ties.





4. Unscrew the engine block heater from the core plug hole and remove (Fig. 6).

INSTALLATION
1. Screw the block heater into the appropriate core hole (Fig. 6).
2. Route the heater wiring harness away from and interference and secure with wiring tie straps.
3. Refill the cooling system.
4. Connect the negative battery cable.
5. Start the engine and inspect for leaks.