P0627 2015 GMC Sierra Code - Fuel Pump Speed Output Circuit
Quick Answer
The P0627 diagnostic trouble code (DTC) in a 2015 GMC Sierra relates to the fuel pump speed output circuit. Common causes include Damaged wiring or connectors in the fuel pump speed output circuit, Faulty fuel pump speed sensor, Malfunctioning FPCM. 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
- P0627 2015 GMC Sierra indicates Fuel Pump Speed Output Circuit.
- Common causes
- Common causes include Damaged wiring or connectors in the fuel pump speed output circuit, Faulty fuel pump speed sensor, Malfunctioning FPCM.
- 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.
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Code P0627 2015 GMC Sierra Description
The P0627 diagnostic trouble code (DTC) in a 2015 GMC Sierra relates to the fuel pump speed output circuit. This code indicates that there is an issue with the fuel pump control module (FPCM) not receiving the correct signal from the fuel pump speed sensor. The fuel pump speed sensor is responsible for monitoring the speed of the fuel pump to ensure it is functioning properly. When the FPCM detects a problem with the fuel pump speed output circuit, it triggers the P0627 code.
Common Causes of P0627 2015 GMC Sierra
- Damaged wiring or connectors in the fuel pump speed output circuit
- Faulty fuel pump speed sensor
- Malfunctioning FPCM
- Issues with the power supply to the fuel pump speed sensor
Symptoms of P0627 2015 GMC Sierra
- Engine stalling or hesitation
- Rough idling
- Engine misfires
- Difficulty starting the vehicle
- Reduced fuel efficiency
How to Fix P0627 2015 GMC Sierra
- Diagnose the issue by using a scan tool to retrieve the DTC and inspecting the fuel pump speed sensor, wiring, and connectors.
- Test the fuel pump speed sensor to ensure it is functioning correctly.
- Check the FPCM for any signs of damage or malfunction.
- Repair or replace any damaged wiring or connectors in the fuel pump speed output circuit.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0627 2015 GMC Sierra
The typical repair costs for addressing a P0627 code can vary depending on the specific cause of the issue. In general, replacing a faulty fuel pump speed sensor or repairing damaged wiring may cost between $150 to $300, including parts and labor. If the FPCM needs to be replaced, the cost can range from $300 to $600. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more precise estimate.
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