P2104 GMC Code - Throttle Actuator Control System - Forced Engine Idle
Quick Answer
The P2104 diagnostic trouble code for GMC vehicles refers to the Throttle Actuator Control System, specifically indicating a Forced Engine Idle condition. Common causes include Faulty throttle body, Malfunctioning throttle position sensor, Wiring or electrical issues in the throttle actuator control system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2104 GMC indicates Throttle Actuator Control System - Forced Engine Idle.
- Common causes
- Common causes include Faulty throttle body, Malfunctioning throttle position sensor, Wiring or electrical issues in the throttle actuator control system.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P2104 GMC Description
The P2104 diagnostic trouble code for GMC vehicles refers to the Throttle Actuator Control System, specifically indicating a Forced Engine Idle condition. This means that the Engine Control Module (ECM) has detected an issue with the throttle actuator control system that is causing the engine to remain in idle mode even when it should not be. The throttle actuator control system is responsible for regulating the amount of air entering the engine, which in turn affects the engine's speed and performance. When this system malfunctions and forces the engine to idle, it can lead to poor acceleration, reduced power, and overall decreased performance.
Common Causes of P2104 GMC
- Faulty throttle body
- Malfunctioning throttle position sensor
- Wiring or electrical issues in the throttle actuator control system
- ECM software malfunction
- Vacuum leaks in the intake system
Symptoms of P2104 GMC
- Check engine light is illuminated on the dashboard
- Engine stalls or idles roughly
- Poor acceleration and reduced power
- Vehicle struggles to maintain speed
- Reduced fuel efficiency
How to Fix P2104 GMC
- Connect a diagnostic scanner to the vehicle's OBD-II port to retrieve the specific error codes, including P2104.
- Inspect the throttle body, throttle position sensor, and wiring for any visible damage or wear.
- Test the throttle position sensor using a multimeter to ensure it is functioning correctly.
- Clear the error codes and reset the ECM to see if the issue persists.
- If necessary, replace the faulty throttle body or throttle position sensor, and repair any wiring or electrical issues in the throttle actuator control system.
Cost to Fix P2104 GMC
The typical repair costs for addressing a P2104 code can range from $200 to $500, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary depending on factors such as the vehicle's make and model, location, and engine type. It's advisable to check with local auto repair shops for a more accurate estimate. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops often charge less.
Need more information about the P2104 GMC code?
Need more information on how to fix the P2104 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2104 GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2104 GMC Code
No Frequently Asked Questions about P2104 GMC Code found.
Discuss the causes and fixes for P2104 GMC OBDII Code
Code P2104 GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.