P0628 Gmc Code - Fuel Pump Speed Output Circuit Low Voltage
Quick Answer
The P0628 code in a GMC vehicle indicates a problem with the fuel pump speed output circuit, specifically a low voltage issue. Common causes include Faulty fuel pump control module, Wiring issues, Malfunctioning fuel pump. 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
- P0628 Gmc indicates Fuel Pump Speed Output Circuit Low Voltage.
- Common causes
- Common causes include Faulty fuel pump control module, Wiring issues, Malfunctioning fuel pump.
- 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 P0628 Gmc Description
The P0628 code in a GMC vehicle indicates a problem with the fuel pump speed output circuit, specifically a low voltage issue. The fuel pump speed output circuit is responsible for controlling the speed of the fuel pump, which is essential for delivering the right amount of fuel to the engine for optimal performance. When the voltage in this circuit is too low, it can lead to various issues that affect the vehicle's performance.
Common Causes of P0628 Gmc
- Faulty fuel pump control module
- Wiring issues
- Malfunctioning fuel pump
- Faulty fuel pump relay
- Problem with the engine control module (ECM)
Symptoms of P0628 Gmc
- Check engine light illuminated on the dashboard
- Poor fuel efficiency
- Engine misfires
- Power loss
- Potential stalling of the vehicle
How to Fix P0628 Gmc
- Use a scan tool to read the error code and diagnose the issue
- Test the voltage in the fuel pump speed output circuit
- Check the wiring for damage or corrosion
- Replace the fuel pump control module if necessary
- Clear the error code and test the vehicle to ensure the issue has been resolved
Cost to Fix P0628 Gmc
The typical repair costs for addressing the P0628 code in a GMC vehicle can range from $200 to $500, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour, but rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It is advisable to check local rates for a more precise estimate.
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Information for Specific GMC Models
- P0628 2014 GMC Sierra — Fuel Pump Speed Output Circuit Low Voltage
- P0628 2015 GMC Sierra — Fuel Pump Speed Output Circuit Low Voltage
- P0628 2016 GMC Sierra — Fuel Pump Speed Output Circuit Low Voltage
- P0628 2017 GMC Sierra — Fuel Pump Speed Output Circuit Low Voltage
- P0628 2018 GMC Sierra — Fuel Pump Speed Output Circuit Low Voltage
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