Operation CHARM: Car repair manuals for everyone.
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

REMOVAL
1. Drain coolant from radiator and cylinder block.
2. Remove power cord plug from heater.
3. Loosen screw in center of heater. Remove heater assembly.

INSTALLATION
1. Thoroughly clean core hole and heater seat.
2. Insert heater assembly with element loop positioned upward.
3. With heater seated, tighten center screw securely to assure a positive seal.
4. Fill cooling system with coolant to the proper level, vent air, and inspect for leaks. Pressurize system with Radiator Pressure Tool before looking for leaks.
5. Install power cord plug to heater.