2021 GMC Yukon
Mileage
88,747
Service Date
2/20/2025
Services Performed
- CAUSE: FAILED SPARK PLUGS CORRECTION: CONFIRMED THE CONCERN. FOUND CHECK ENGINE LIGHT ON AND FLASHING. FOUND CODES PRESENT: P0300 – RANDOM MISFIRE. P0304 CODE – MISFIRE CYLINDER #4. SWAPPED SPARK PLUG FROM CYL# 4 – 6 AND MISFIRE CONTINUED ON CYLINDER #6. DETERMINED THROUGH TROUBLESHOOTING THAT SPARK PLUGS ARE FAILED. RECOMMEND REPLACING SPARK PLUGS.
- SPARK PLUGS – Remove & Replace – 5.3L Eng
- SPARK PLUG WIRE SET – Remove & Replace – 5.3L Eng
LLOYD S. gave our service a 5 star review on 2/23/2025
