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How-to » Engine » Emission Control » How to Replace a Throttle Position Sensor
 Note: This is a general guide and may not apply to your vehicle.

How to Replace a Throttle Position Sensor

for the 2003 Ford Ranger XLT 6 Cyl 4.0L change
PARTS
  • Throttle Position Sensor
TOOLS
STEPS
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Moderate
Safety Tip:
Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes.



1
Locate the OBD data link connector (DLC). Refer to your owner's manual for the specific location.
2
Turn your key to the ON position. Do not start the engine.
3
Plug your scan tool into the OBD data link connector. Turn on the scan tool and select the appropriate steps to read the diagnostic trouble code (DTC).
6021
4
Locate the throttle position sensor.
6019
5
Disconnect the electrical connector from the throttle position sensor.
6017
6
Test the resistance of the throttle position sensor (TPS) with a digital multi-meter. If the resistance is out of specifications, the TPS must be replaced.
7
Remove the throttle position sensor. Clean the sensor connector as needed using electrical contact cleaner or spray.
6015
8
Install the new throttle position sensor. Tighten the mounting screws and attach the electrical connector.
9
Erase the diagnostic trouble code (DTC) with the scan tool using the delete or erase command. Road test your vehicle to see if the check engine light returns.
6013
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