F 250 2WD Pickup V8-5.4L CNG VIN M (1999)
Engine Block Heater: Service and Repair
Removal
1. Drain the cooling system.
2. Disconnect the (A) block heater wire extension from the (B) block heater wiring and remove.
3. Raise and support the vehicle.
4. Disconnect the (A) block heater wiring from the (B) block heater and remove.
5. Remove the block heater.
1
CAUTION: Do not loosen the block heater retaining screw more than necessary for removal.
Loosen the block heater retaining screw.
2
Twist and slide the block heater to release the retainer clip and remove. Discard the retainer clip.
Installation
