2013 Chevrolet Equinox
Mileage
98,371
Service Date
8/22/2025
Services Performed
- SCAN PCM FOR CHECK ENGINE LIGHT, NO CODES PRESENT AT THIS TIME. SCANNED FOR HISTORY CODES TO FIND NO CODES, PREVIOUS CODE WAS P2440 – SECONDARY AIR INJECTION VALVE STUCK OPEN. UPON TESTING, COMMAND SECONDARY AIR PUMP ON, AND FOUND GOOD PRESSURE AND SUCTION FROM PUMP. CHECKED HOSING TO SECONDARY AIR INJECTION VALES TO FIND GOOD PRESSURE REACHING VALVES. TESTED BOTH VALVES TO FIND PROPER OPERATION, LASTLY THROUGH DATA PIDS, WATCHED PRESSURE IN SYSTEM PAST VALVES TO FIND SMALL VARIATION FROM VALVES BANK TO BANK, +- 1 PSI. FOUND PRESSURES ON BOTH VALVES TO BE .7-2 PSI ABOVE BARO PRESSURE WHICH IS PROPER OPERATION FROM MANUFACTURER. TEST DRIVE VEHICLE TO FIND NO CHECK ENGINE LIGHT. ECM TESTS SYSTEM EVERY KEY CYCLE. COMMON CAUSE OF INTERMITTENT CODE SET IS INTERMITTENT PUMP FAILURE, LESS COMMON THAN INTERMITTENT VALVE OR PRESSURE SENSOR ISSUES. VALVE AND PRESSURE SENSOR ARE SAME ASSEMBLY ON THIS VEHICLE. LASTLY, PASSAGES BEING BLOCKED DUE TO CARBON BUILD UP IS A VERY COMMON CAUSE, BUT PASSAGE CLEARING PROCEDURE WAS ALREADY PERFORMED ON THIS VEHICLE, AND LOW FLOW CODE IS GENERALLY SEEN IN THAT CONDITION INSTEAD OF P2440.
Michael/Donna M. gave our service a 5 star review on 8/22/2025
