EFE Heater: Service and Repair

Removal
1. Remove throttle body (Refer to Throttle Body - Service and Repair). In this case, however, it is not necessary to disconnect fuel hoses and engine cooling water hoses from throttle body.
2. Disconnect Early Fuel Evaporation (EFE) heater coupler.
3. Remove EFE heater from intake manifold.

Installation
1. Clean mating surfaces of throttle body and intake manifold that mate with EFE heater.





2. Install EFE heater to intake manifold. Use new upper gasket.
3. Install throttle body according to procedure described previously.
4. Connect EFE heater coupler.