2021 Chevrolet Silverado 1500
Mileage
35,628
Service Date
9/17/2024
Services Performed
- CODES: PO171 – FUEL TRIMS LEAN B1 PO174 – FUEL TRIMS LEAN B2 THE FUEL TRIMS ARE AT +20 AND +30. THESE LEVELS ARE TOO HIGH. AFTER CHECKING MAYS COMPONENTS – WE FOUND THE AFTER MARKET OIL CATCH CAN IS LEAKING AND CAUSING THE VACUUM LEAK. WE BYPASSED THE CATCH CAN AND THE FUEL TRIMS WENT DOWN TO +3 AND +4. WE DID PUT THE CATCH CAN BACK TOGETHER FOR NOW AND THE CUSTOMER IS GOING TO ADDRESS THE ISSUE.
ZACH S. gave our service a 5 star review on 9/19/2024