System Components
The following engine components (as used on CNG vehicle) are identical to components used on gasoline equipped vehicles. For component description, see THEORY/OPERATION - 3.3L GASOLINE article in the ENGINE PERFORMANCE section.
- Throttle Body
- Accelerator Linkage
- Manifold Absolute Pressure (MAP) Sensor
- Engine Coolant Temperature Sensor
- Intake Manifold
- Throttle Position Sensor
- Idle Air Control Motor (Automatic Idle Speed)
- Crankshaft Position Sensor
- Automatic Shutdown Relay
- Oxygen Sensor
- Vehicle Speed Sensor
- Ignition System
- All Air Conditioning Components
- All Speed Control Components
- All Overdrive Components
- Alternator (Generator)
- Park/Neutral Position Switch
- Brake Switch Controls
For service and component removal/installation procedures for shared components, see REMOVE/INSTALL/OVERHAUL - 3.3L GASOLINE article in the ENGINE PERFORMANCE section.
CNG fuel system uses these additional components.
- Unique Powertrain Control Module (PCM)
- CNG Fuel Injector Driver Module
- CNG Fuel Shutoff Solenoid Relay
- High-Pressure Fuel Fill Receptacle With An Internal One-Way Check Valve
- Fuel Filter Mounted In Fuel Pressure Regulator
- Unique CNG Fuel Injectors
- High-Pressure, Stainless Steel Seamless Fuel Tubes
- Stainless Steel, Double-Ferrule, Compression-Type Fuel Tube Fittings (Not At All Fuel Tube Connections Or Components)
- Fuel Rail Mounted Fuel Low-Pressure Sensor
- Unique Fuel Rail To Mount Fuel Injectors
- High-Pressure Fuel Cylinders
- Manual Fuel Control Valves (One On Each Fuel Cylinder)
- Manual (Mechanically Operated) 1/4 Turn Gas Shutoff Valve
- Fuel Rail Mounted Fuel Temperature Sensor
- Fuel Rail Mounted And Electrically Controlled Low-Pressure Fuel Shutoff Solenoid
- Fuel Pressure Regulator Mounted And Electrically Controlled High-Pressure Fuel Shutoff Solenoid
- Fuel Pressure Regulator Warmed By Engine Coolant
- Fuel Gauge High-Pressure Sensor Used To Operate Fuel Gauge
- Separate Frame Rail Mounted Check Valve