Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2003 >> Explorer AWD V8-4.6L VIN W >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Cylinder Block Assembly >> Engine Block Heater >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Engine Block Heater: Service and Repair

Block Heater

Removal and Installation
1. Drain the cooling system.
2. With the vehicle in neutral, position it on a hoist.
3. Remove the components in the order indicated.

Part 1 Of 2:




Part 2 Of 2:





4. To install, reverse the removal procedure.
5. Fill and bleed the cooling system.

Item 2: Block Heater Retaining Screw Removal Note

1. CAUTION: Do not loosen the block heater retaining screw more than necessary for removal.

Loosen the block heater retaining screw.

Item 3: Block Heater Installation Note
1. Clean and inspect the engine block mating surface before installing the block heater. Lubricate the block heater seal and the cylinder block hole with clean engine coolant to ease installation.

Item 1: Block Heater Power Cable Installation Note
1. Make sure the power cable is routed and secured away from rotating or hot components or damage to the cable can occur.
pro multis · About Operation CHARM