P00C6 2016 Chevrolet Silverado Code - Fuel Rail Pressure Low During Engine Cranking
Quick Answer
The fuel rail pressure sensor detects fuel pressure within the fuel rail. Common causes include Faulty High Pressure Fuel Pump, Faulty Fuel Rail Pressure Sensor, High Pressure Fuel Pump harness is open or shorted. 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
- P00C6 2016 Chevrolet Silverado indicates Fuel Rail Pressure Low During Engine Cranking.
- Common causes
- Common causes include Faulty High Pressure Fuel Pump, Faulty Fuel Rail Pressure Sensor, High Pressure Fuel Pump harness is open or shorted.
- 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.
Code P00C6 2016 Chevrolet Silverado Description
High pressure fuel is regulated by the high-pressure fuel pump actuator, which is a part of the high-pressure fuel pump. The high-pressure fuel pump actuator is a solenoid valve. The ECM provides a voltage on the actuator high control circuit and ground on the actuator low control circuit. Both circuits are controlled through output drivers within the ECM. When deactivated, both drivers are disabled. When activated, the high control circuit driver energizes the high-pressure fuel pump actuator, and the low control circuit driver Pulse-Width Modulates (PWM) the low control circuit to ground.
The high-pressure mechanical fuel pump is driven by three lobes on the camshaft. The ECM uses the camshaft and crankshaft position sensor inputs to synchronize the high-pressure fuel pump actuator with the position of each of the camshaft lobes. The ECM regulates fuel pressure by adjusting the portion of each pump stroke that provides fuel to the rail.
The ECM monitors the fuel rail fuel pressure sensor and the high-pressure fuel pump actuator to determine if the commanded and actual pressure are within a predetermined range, or if the amount of fuel pressure correction exceeds a calibrated pressure.
The Diagnostic Trouble Code (DTC) will set if the ECM detects that the fuel pressure is not rising or has fallen beyond acceptable limits during engine cranking.
What are the Possible Causes of the DTC P00C6 2016 Chevrolet Silverado?
- Faulty High Pressure Fuel Pump
- Faulty Fuel Rail Pressure Sensor
- High Pressure Fuel Pump harness is open or shorted
- High Pressure Fuel Pump electrical circuit poor connection
How to Fix the DTC P00C6 2016 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P00C6 2016 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P00C6 2016 Chevrolet Silverado code?
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Frequently Asked Questions about P00C6 2016 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code P00C6 in a 2016 Chevrolet Silverado?
- Common symptoms include hard starting, rough idling, loss of power, and potential stalling during engine cranking.
2. What causes the OBDII code P00C6 in a 2016 Chevrolet Silverado?
- The code P00C6 typically indicates low fuel rail pressure during engine cranking, which can be caused by issues with the fuel pump, fuel pressure regulator, or fuel filter.
3. How can I diagnose the low fuel rail pressure issue triggering code P00C6 in my 2016 Chevrolet Silverado?
- Diagnosis involves checking the fuel pressure using a gauge, inspecting the fuel pump, regulator, and filter for proper operation, and ensuring there are no fuel leaks in the system.
4. What are the potential repair options for addressing OBDII code P00C6 in a 2016 Chevrolet Silverado?
- Repair options may include replacing a faulty fuel pump, fuel pressure regulator, or fuel filter, as well as addressing any fuel leaks in the system.
5. Can a clogged fuel filter trigger the OBDII code P00C6 in a 2016 Chevrolet Silverado?
- Yes, a clogged fuel filter can restrict fuel flow and lead to low fuel rail pressure during engine cranking, triggering the P00C6 code.
6. Is it safe to continue driving my 2016 Chevrolet Silverado with the OBDII code P00C6 present?
- It is not recommended to continue driving with the P00C6 code active, as it can lead to poor engine performance and potential further damage to the fuel system.
7. Will resetting the OBDII code P00C6 in my 2016 Chevrolet Silverado make the issue go away?
- Resetting the code may temporarily clear the check engine light, but it will not fix the underlying issue causing low fuel rail pressure during engine cranking.
8. How important is it to address the OBDII code P00C6 promptly in a 2016 Chevrolet Silverado?
- It is crucial to address the P00C6 code promptly to prevent potential engine damage, poor fuel efficiency, and drivability issues in your Chevrolet Silverado.
9. Can a faulty fuel pressure sensor cause the OBDII code P00C6 in a 2016 Chevrolet Silverado?
- While less common, a faulty fuel pressure sensor can contribute to incorrect fuel pressure readings and trigger the P00C6 code in your Chevrolet Silverado.
10. How long does it typically take to repair the low fuel rail pressure issue causing code P00C6 in a 2016 Chevrolet Silverado?
- The repair time can vary depending on the exact cause of the issue, but it may take a few hours to a full day to diagnose and fix the low fuel rail pressure problem triggering the P00C6 code.
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