FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
What are the symptoms of a bad throttle position sensor in a 2020 Chevrolet Silverado 1500 T1XX? - Chevrolet Silverado 1500
Home/Cars/Chevrolet/Silverado 1500/T1XX (2019-2023)/What are the symptoms of a bad throttle position sensor in a 2020 Chevrolet Silverado 1500 T1XX?

What are the symptoms of a bad throttle position sensor in a 2020 Chevrolet Silverado 1500 T1XX?

Chevrolet Silverado 1500 T1XX (2019-2023)

Error Codes
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
659 words

Problem Statement

Learn about the symptoms of a bad throttle position sensor in the 2020 Chevrolet Silverado 1500 T1XX, along with diagnostic steps and repair instructions.

Affected Component
Throttle Position Sensor

Symptoms

  • •Poor Acceleration
  • •Stalling
  • •Check Engine Light
  • •Erratic Idle
  • •Surging or Lurching
  • •Increased Fuel Consumption

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II Scanner
  • •Multimeter
  • •Basic hand tools (screwdrivers, pliers, wrenches)
  • •Torque wrench (if needed for reinstallation)

Additional Information

Affected Component
Throttle Position Sensor
Difficulty
medium
Severity
medium
Tools Required
4 items

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Tools Required
  • OBD-II Scanner
  • Multimeter
  • Basic hand tools (screwdrivers, pliers, wrenches)
  • Torque wrench (if needed for reinstallation)
Repair Instructions

If TPS is Found to be Faulty:

  1. Disconnect Battery:

    • Disconnect the negative terminal of the battery to prevent any electrical shorts.

  2. Remove the Throttle Body (if necessary):

    • Depending on the vehicle design, you may need to remove the throttle body to access the TPS. Follow the manufacturer's procedure to safely remove the throttle body.

  3. Remove the Throttle Position Sensor:

    • Locate the TPS on the throttle body.
    • Unplug the electrical connector from the TPS.
    • Remove the screws or bolts securing the TPS to the throttle body.
    • Carefully lift the TPS off.

  4. Install New Throttle Position Sensor:

    • Position the new TPS in place and secure it with the screws or bolts.
    • Reconnect the electrical connector to the TPS.

  5. Reinstall Throttle Body (if removed):

    • If you removed the throttle body, clean the mating surfaces and reinstall it.
    • Ensure all vacuum lines and electrical connectors are properly reattached.

  6. Reconnect Battery:

    • Reconnect the negative terminal of the battery.

  7. Reset Check Engine Light:

    • If you had a check engine light, use the OBD-II scanner to clear the codes.

  8. Test Drive:

    • Take the vehicle for a test drive to ensure proper operation and monitor for any reoccurring symptoms.

  9. Final Check:

    • After the test drive, recheck for any error codes using the OBD-II scanner.

By following these steps, you can diagnose and repair a faulty throttle position sensor in a 2020 Chevrolet Silverado 1500 T1XX effectively. If symptoms persist after replacement, further diagnostics may be required to check other potential issues in the throttle control system.