Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2001 >> F 150 4WD Pickup V6-4.2L VIN 2 >> Repair and Diagnosis >> Heating and Air Conditioning >> Heater Core >> 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

Heater Core: Service and Repair




REMOVAL

NOTE: If a heater core leak is suspected, the heater core must be leak-tested before it is removed from the vehicle. Testing and Inspection

1. Disconnect the battery.
2. Drain the cooling system.
3. Remove the instrument panel. Refer to: Body and Frame, Interior Trim, Dashboard/Instrument Panel, Service and Repair, Removal and Installation, Removal and Installation







4. Compress the holding tabs and disconnect the heater water hoses at the heater core.







5. Remove the A/C plenum demister adapter.
1 Remove the screw.
2 Remove the A/C plenum demister adapter.







6. Disconnect the vacuum line.







7. Remove the heater core bracket.
1 Remove the screws.
2 Remove the bracket.







8. Remove the plenum chamber top.
1 Remove the 13 screws.
2 Remove the plenum chamber top.
9. Remove the blend door assembly from the case.







10. Remove the heater core.

INSTALLATION
1. To install, reverse the removal procedure.
^ Lubricate the coolant hoses with MERPOL(R) meeting Ford specification ESE-M99B144-B or plain water only, if needed.
pro multis · About Operation CHARM