Sending Units & Sensors
WARNING: This page is about a different car, the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
SENDING UNITS & SENSORS LOCATION
| Component | Location |
|---|---|
| Ambient Air Temperature Sensor | Behind front grille, on radiator support. |
| Automatic Transmission Input Shaft Speed Sensor | On left side of transmission. |
| Camshaft Position Sensor (4.3L VIN X) | Part of distributor, top rear of engine. See Figure . |
| Camshaft Position Sensor (4.8L VIN V) | At top center rear of engine. See Figure . |
| Camshaft Position Sensor (5.3L VIN T) | At top center rear of engine. See Figure . |
| Camshaft Position Sensor (6.0L VIN U) | At top center rear of engine. See Figure . |
| Crankshaft Position Sensor (4.3L VIN X) | On lower front of engine, near crankshaft. |
| Crankshaft Position Sensor (4.8L VIN V) | On lower right rear of engine, near starter motor. See Figure . |
| Crankshaft Position Sensor (5.3L VIN T) | On lower right rear of engine, near starter motor. See Figure . |
| Crankshaft Position Sensor (6.0L VIN U) | On lower right rear of engine, near starter motor. See Figure . |
| Engine Coolant Temperature Gauge Sensor (4.3L VIN X) | On left side of engine. See Figure . |
| Engine Coolant Temperature Gauge Sensor (4.8L VIN V) | On left side of engine. |
| Engine Coolant Temperature Gauge Sensor (5.3L VIN T) | On left side of engine. |
| Engine Coolant Temperature Gauge Sensor (6.0L VIN U) | On left side of engine. |
| Engine Oil Pressure Sensor (4.3L VIN X) | On top rear of engine. See Figure . |
| Engine Oil Pressure Sensor (4.8L VIN V) | On top rear of engine. See Figure . |
| Engine Oil Pressure Sensor (5.3L VIN T) | On top rear of engine. See Figure . |
| Engine Oil Pressure Sensor (6.0L VIN U) | On top rear of engine. See Figure . |
| Fuel Pump & Sender Assembly | In fuel tank, under rear of vehicle. |
| Fuel Rail Pressure Sensor (CNG) | On right fuel rail. |
| Fuel Rail Temperature Sensor (CNG) | On right fuel rail. |
| Fuel Tank Pressure Sensor (CNG) | On rear tank high pressure lock-off. |
| Fuel Tank Pressure Sensor (Gasoline) | In fuel tank. |
| Heated Oxygen Sensor (Bank 1 Sensor 1) | In exhaust pipe, in front of catalytic converter. |
| Heated Oxygen Sensor (Bank 1 Sensor 2) | In exhaust pipe, in back of catalytic converter. |
| Heated Oxygen Sensor (Bank 2 Sensor 1) | In exhaust pipe, in front of catalytic converter. |
| Heated Oxygen Sensor (Bank 2 Sensor 2) | In exhaust pipe, in back of catalytic converter. |
| Inflatable Restraint Front End Sensor | On lower center of radiator support. |
| Intake Air Temperature Sensor | Integral with mass airflow sensor. |
| Knock Sensor (4.3L VIN X) | On top left rear of engine. See Figure . |
| Knock Sensor 1 (4.8L VIN V) | Below front of intake manifold. |
| Knock Sensor 1 (5.3L VIN T) | Below front of intake manifold. |
| Knock Sensor 1 (6.0L VIN U) | Below front of intake manifold. |
| Knock Sensor 2 (4.8L VIN V) | Below rear of intake manifold. |
| Knock Sensor 2 (5.3L VIN T) | Below rear of intake manifold. |
| Knock Sensor 2 (6.0L VIN U) | Below rear of intake manifold. |
| Manifold Absolute Pressure Sensor (4.3L VIN X) | On top right side of engine. See Figure . |
| Manifold Absolute Pressure Sensor (4.8L VIN V) | At top rear of engine, on intake manifold. |
| Manifold Absolute Pressure Sensor (5.3L VIN T) | At top rear of engine, on intake manifold. |
| Manifold Absolute Pressure Sensor (6.0L VIN U) | At top rear of engine, on intake manifold. |
| Mass Airflow Sensor | Part of air intake duct, at front of engine compartment. See Figure . |
| Passlock Sensor | Inside top of steering column. |
| Throttle Position Sensor (4.3L VIN X) | On left side of throttle body. |
| Throttle Position Sensor (4.8L VIN V) | On left side of throttle body. See Figure . |
| Throttle Position Sensor (5.3L VIN T) | On left side of throttle body. See Figure . |
| Throttle Position Sensor (6.0L VIN U) | On left side of throttle body. See Figure . |
| Vehicle Speed Sensor (4L60-E) | On right side of transmission. |
| Vehicle Speed Sensor (4L80-E) | On left side of transmission. |
| Wheel Speed Sensor (Left Front) | On inside of left front wheel. |
| Wheel Speed Sensor (Right Front) | On inside of right front wheel. |