HVAC Heater Blend Door Actuator. HVAC Blend Door Actuator. The engine types may include 1.5L 1499CC 91Cu. l4 FULL HYBRID EV-GAS (FHEV) DOHC Naturall y Aspirated,2.0L 1999CC 122Cu. l4 PLUG-IN HYBRID EV-GAS (PHEV) DOHC Naturally Aspirated,2.5L 2488CC 152Cu.