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Sending Units & Sensors

SENDING UNITS & SENSORS LOCATION

Component Location
Barometric Pressure Sensor At center of shipping.
Coolant Level Sensor In radiator.
Coolant Temp. Sending Unit On left cylinder head.
Coolant Temperature Sensor
4.3L (VIN Z)
"G" Series On front of intake manifold. See Figure.
"P" Series 4.3L (VIN Z) On front of intake manifold. See Figure.
5.0L (VIN H) & 5.7L (VIN K) On front of intake manifold. See Figure.
"P" Series 5.7L (VIN K) On front of intake manifold. See Figure.
Coolant Temperature Sensor
"G" Series 7.4L (VIN N) On front of intake manifold. See Figure.
"P" Series 7.4L (VIN N) On front of intake manifold. See Figure.
Engine Speed Sensor
"G" Series On left front of engine.
"P" Series 6.2L (Diesel) On rear of engine. See Figure.
Input Speed Sensor On left side of transmission.
Knock Sensor
"G" Series 4.3L (VIN Z) Under exhaust manifold. See Figure.
"P" Series 4.3L (VIN Z) Under exhaust manifold. See Figure.
5.0L (VIN H) & 5.7L (VIN K) Near starter. See Figure.
"P" Series 5.7L (VIN K) Near starter. See Figure.
Low Coolant Warning Sensor (Diesel) In right radiator tank.
Manifold Abs. Press. (MAP) Sensor
"G" & "P" Series 6.2L (Diesel) On center of firewall. See Figure.
Gas
"G" Series 4.3L (VIN Z) At center of right valve cover. See Figure.
"P" Series 4.3L (VIN Z) At center of right valve cover. See Figure.
5.0L (VIN H) & 5.7L (VIN K) At center of right valve cover. See Figure.
"P" Series 5.7L (VIN K) At center of right valve cover. See Figure.
"G" Series 7.4L (VIN N) At center of right valve cover. See Figure.
"P" Series 7.4L (VIN N) At center of right valve cover. See Figure.
Oil Pressure Sending Unit On left rear of engine block.
Output Speed Sensor On left side of transmission.
Throttle Position Sensor (TPS)
"G" Series 4.3L (VIN Z) On throttle body (gas), or on injection pump (diesel). See Figure.
"P" Series 4.3L (VIN Z) On throttle body (gas), or on injection pump (diesel). See Figure.
5.0L (VIN H) & 5.7L (VIN K) On throttle body (gas), or on injection pump (diesel). See Figure.
"P" Series 5.7L (VIN K) On throttle body (gas), or on injection pump (diesel). See Figure.
"G" Series 7.4L (VIN N) On throttle body (gas), or on injection pump (diesel). See Figure.
"P" Series 7.4L (VIN N) On throttle body (gas), or on injection pump (diesel). See Figure.
"G" & "P" Series 6.2L (Diesel) On throttle body (gas), or on injection pump (diesel). See Figure.
Vehicle Speed Sensor (VSS)
"G" Series 4.3L (VIN Z) On left rear of transmission. See Figure.
"P" Series 4.3L (VIN Z) On left rear of transmission. See Figure.
5.0L (VIN H) & 5.7L (VIN K) On left rear of transmission. See Figure.
"P" Series 5.7L (VIN K) On left rear of transmission. See Figure.
"G" Series 7.4L (VIN N) On left rear of transmission. See Figure.
"P" Series 7.4L (VIN N) On left rear of transmission. See Figure.
"G" & "P" Series 6.2L (Diesel) On left rear of transmission. See Figure.
Water-In-Fuel Sensor (Diesel) In fuel filter assembly.