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How do I fix the error code related to the fuel system in my Volvo XC60? - Volvo XC60
Home/Cars/Volvo/XC60/First Generation (2008-2017)/How do I fix the error code related to the fuel system in my Volvo XC60?

How do I fix the error code related to the fuel system in my Volvo XC60?

Volvo XC60 First Generation (2008-2017)

Error Codes
3-5 hours
Time
medium
Difficulty
medium
Severity
Error Code: P0171, P0174
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
763 words

Problem Statement

Learn how to diagnose and repair fuel system issues on your Volvo XC60, including symptoms, diagnostic steps, and repair instructions.

Error Code
P0171, P0174
Affected Component
fuel system
Estimated Time
3-5 hours

Symptoms

  • •Engine misfires or poor performance
  • •Difficulty starting the engine
  • •Check Engine Light (CEL) illuminated with a fuel system-related error code
  • •Decreased fuel efficiency
  • •Unusual smells (fuel odor) from the engine compartment

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II Scanner
  • •Basic Hand Tools (screwdrivers, pliers, etc.)
  • •Fuel Pressure Gauge
  • •Multimeter
  • •Fuel Injector Tester (optional)
  • •MAF Sensor Cleaner (if cleaning is required)
  • •Socket set
  • •fuel line disconnect tool
  • •new fuel pump assembly
  • •new fuel filter
  • •new injectors
  • •O-rings

Additional Information

Error Code
P0171, P0174
Affected Component
fuel system
Estimated Time
3-5 hours
Difficulty
medium
Severity
medium
Tools Required
12 items

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Back to Generation
Fixing Fuel System Error Code on Volvo XC60 (2008-2017)
Repair Instructions

Step 1: Replacing Fuel Pump

  • If the fuel pressure was found to be low and no leaks were identified, the fuel pump may need replacement.
    • Tools Required: Socket set, fuel line disconnect tool, new fuel pump assembly.
    • Steps:
      1. Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.
      2. Disconnect the battery.
      3. Remove the rear seat or trunk access cover to access the fuel pump assembly.
      4. Disconnect the fuel lines and electrical connectors from the pump.
      5. Remove the retaining ring and lift the pump assembly out of the tank.
      6. Install the new pump by reversing the steps.

Step 2: Replacing Fuel Filter

  • If the fuel filter is clogged, it may need replacement.
    • Tools Required: Socket set, fuel line disconnect tool, new fuel filter.
    • Steps:
      1. Relieve fuel system pressure as described previously.
      2. Locate the fuel filter (usually along the fuel line).
      3. Disconnect the fuel lines (be prepared for fuel spillage).
      4. Remove the mounting brackets and replace the filter.
      5. Reconnect lines and ensure there are no leaks.

Step 3: Replacing Fuel Injectors

  • If injector tests fail, replace faulty injectors.
    • Tools Required: Socket set, new injectors, O-rings.
    • Steps:
      1. Relieve fuel system pressure.
      2. Remove the intake manifold if necessary to access the injectors.
      3. Disconnect the electrical connectors and fuel lines from the injectors.
      4. Remove the old injectors. Lubricate new O-rings with engine oil before installation.
      5. Install new injectors and reconnect everything.
Final Steps

  1. Clear Error Codes

    • After repairs, use the OBD-II scanner to clear the error codes.
    • Start the engine and monitor for any returning issues.

  2. Test Drive

    • Take the vehicle for a test drive to ensure that the repair has resolved the issue and the CEL does not reappear.

  3. Monitor Performance

    • Pay attention to engine performance and fuel economy over the next few days to confirm the fix is effective.
Conclusion

By following these steps, you can diagnose and repair common fuel system issues on a Volvo XC60. If problems persist after following these procedures, it may be advisable to consult with a professional technician for further diagnosis.