K 3500 Truck 4WD V8-454 7.4L (1994)
Throttle Position Sensor: Service and Repair
Throttle Position (TP) Sensor
REMOVAL:
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Disconnect electrical connectors.
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Remove the TPS attaching screw assemblies and retainer, (if applicable).
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Remove TPS from throttle body assembly.
NOTE: The TPS is an electrical component and must not be soaked in any liquid cleaner or solvent, as damage may result.
INSTALLATION:
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Install TPS, with seal, to throttle body assembly, while lining up TPS lever with TPS drive lever on throttle body.
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Install the two attaching screw assemblies. Tighten screw assemblies to 2.0 Nm (18.0 lb-in).
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Install electrical connector to TPS.
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Check for TPS output as follows:
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Connect an ALDL scanner to read TPS output voltage.
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With ignition ON and engine stopped, TPS voltage should be less than 1.25 volts. If more than 1.25 volts, replace TPS.
