Quick Answer
P0253 means: DTC P0253 indicates an issue with the fuel pump A circuit, signaling a low or high voltage problem.
Can I drive with P0253? Immediate attention is recommended to avoid engine performance issues.
Common Questions
What does P0253 mean and how does it affect my car?
DTC P0253 indicates a fuel pump circuit issue, which can lead to poor engine performance, stalling, or failure to start the vehicle. It's crucial to address this code quickly as it can affect overall vehicle reliability.
What are the most common causes of P0253 and how much does it cost to fix?
Common causes include a faulty fuel pump (60% likelihood), a malfunctioning relay (25%), and wiring issues (10%). Repair costs range from $50 to $800 depending on the required repairs.
Can I drive my car with P0253 or should I stop immediately?
While you may be able to drive with this code, it is not advisable. Continuing to drive can lead to further engine damage or a complete fuel system failure. It's best to seek immediate diagnostics.
How can I diagnose P0253 myself using GeekOBD APP?
Using the GeekOBD APP, you can scan your vehicle’s OBD2 system to retrieve the P0253 code, review freeze frame data for context, and monitor live data to check the fuel pump circuit's voltage and performance.
What vehicles are most commonly affected by P0253?
DTC P0253 is commonly found in 2005-2018 Ford F-150s, Chevrolet Silverados, and GMC Sierras. These vehicles may have known issues leading to this code, so regular diagnostics are recommended.
How can I prevent P0253 from happening again?
Regular maintenance such as changing the fuel filter, ensuring clean fuel, and checking wiring connections can help prevent P0253. Additionally, using quality fuel and keeping the fuel tank adequately filled can enhance pump longevity.
What is P0253?
The Diagnostic Trouble Code P0253 indicates a problem with the fuel pump A circuit, specifically relating to a low or high signal. This code is often triggered when the Engine Control Module (ECM) detects a deviation in the voltage or resistance within the fuel pump circuit. The fuel pump plays a crucial role in delivering fuel from the tank to the engine, and when there is an issue, it can lead to poor engine performance, stalling, or failure to start. Commonly seen in various makes, particularly Ford, Chevrolet, and GMC trucks from 2005 to 2018, this code can also be associated with other issues such as faulty wiring, a malfunctioning fuel pump relay, or a damaged fuel pump itself. Drivers often experience symptoms such as engine hesitations, reduced fuel efficiency, or even a no-start condition. Addressing this code promptly is vital, as neglecting it could lead to more significant engine and fuel system complications down the line.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0253 is present:
- Check engine light illuminates and remains on, indicating a need for immediate diagnostics.
- Engine hesitates during acceleration, causing a noticeable drop in responsiveness.
- Fuel economy decreased by 10-15%, which can significantly impact your budget.
- Difficulty starting the engine, especially after the vehicle has been parked for a while.
- Unusual noises coming from the fuel pump area, such as whining or buzzing sounds.
Possible Causes
Most common causes of P0253 (ordered by frequency):
- The most common cause is a faulty fuel pump, which occurs in approximately 60% of cases. This can be due to wear and tear or contamination in the fuel system.
- A malfunctioning fuel pump relay is the second most common cause, responsible for about 25% of issues. This relay can fail due to electrical shorts or aging.
- Wiring issues, such as damaged wires or loose connections, can account for 10% of cases. Inspecting the wiring harness and connectors is crucial for prevention.
- Less common, but serious, is a failing ECM, which can misinterpret signals from the fuel pump circuit, leading to erroneous code generation.
- A rare but possible cause is a clogged fuel filter, which can restrict fuel flow and cause the fuel pump to work harder than normal.
P0253 Repair Costs
Cost Breakdown by Repair Type
Fuel Pump Replacement
Replacement of the faulty fuel pump with a new OEM or aftermarket part.
- Total: $300 - $800
- Success rate: 85%
Fuel Pump Relay Replacement
Replacing the malfunctioning relay to restore proper fuel pump operation.
- Total: $50 - $150
- Success rate: 90%
Wiring Repair
Repairing damaged wiring or connections in the fuel pump circuit.
- Total: $100 - $300
- Success rate: 80%
Money-Saving Tips for P0253
- Start with the most common and least expensive repairs first
- Use GeekOBD APP to confirm diagnosis before replacing expensive parts
- Consider preventive maintenance to avoid future occurrences
- Compare prices for OEM vs aftermarket parts based on your needs
- Address the issue promptly to prevent more expensive secondary damage
Diagnostic Steps
Professional P0253 Diagnosis Process
Follow these systematic steps to accurately diagnose P0253. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for signs like damaged wiring, loose connections, or corrosion in the fuel pump circuit (5-10 minutes)
Step 1: Initial visual inspection - Check for signs like damaged wiring, loose connections, or corrosion in the fuel pump circuit (5-10 minutes).
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)
Step 2: Use the GeekOBD APP to perform an OBD2 scan - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).
Step 3: Step 3: Component testing - Use a multimeter to test the voltage and resistance in the fuel pump circuit, ensuring they meet manufacturer specifications (20-30 minutes)
Step 3: Component testing - Use a multimeter to test the voltage and resistance in the fuel pump circuit, ensuring they meet manufacturer specifications (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation of the fuel pump and clear codes after any necessary repairs (10-15 minutes)
Step 4: System function test - Verify proper operation of the fuel pump and clear codes after any necessary repairs (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm the success of the repair (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm the success of the repair (15-20 minutes).
Important Notes
- Always verify the repair with GeekOBD APP after completing diagnostic steps
- Clear codes and test drive to ensure the problem is resolved
- Address underlying causes to prevent code recurrence
Real Repair Case Studies
Case Study 1: Repair Case: 2015 Ford F-150 Fuel Pump Replacement
Vehicle: 2015 Ford F-150, 75,000 miles
Problem: Customer reported engine stalling and difficulty starting.
Diagnosis: Diagnostic scan revealed P0253. Visual inspection showed fuel pump wiring was damaged.
Solution: Replaced the fuel pump and repaired the wiring harness.
Cost: $650 (parts: $400 for the pump, $250 for labor)
Result: Vehicle performance improved significantly; no further issues reported.
Case Study 2: Repair Case: 2017 Chevrolet Silverado Fuel Pump Relay Issue
Vehicle: 2017 Chevrolet Silverado, 50,000 miles
Problem: Customer experienced intermittent starting issues.
Diagnosis: P0253 was confirmed; relay tested faulty.
Solution: Replaced the fuel pump relay.
Cost: $120 (parts: $20 for relay, $100 for labor)
Result: Starting issues resolved; customer satisfied with quick turnaround.