2006 Hummer H3
Mileage
201,666
Service Date
1/19/2022
Services Performed
- TIRE PRESSURE (PSI) L/F – IN 23 OUT 30 R/F – IN O25UT 30 L/R – IN OUT22 30 R/R – IN OUT 2430 *
- *
- TECH NOTES: SCANNED FOR CODES – P0141 – O2 HEATER BANK 1 SENSOR 2 P0300 – MISFIRE RANDOM P0894 – TRANSMISSION COMPONENT SLIPPING. CHECKED FREEZE FRAME DATA, THERE IS A P0301- CYLINDER #1 MISFIRE. SWAPPED #1 COIL WITH #2 COIL AND MISFIRE STAYED ON #1 CYLINDER. CHECKED #1 SPARK PLUG, LOOK OK AT THIS TIME. dUE TO MILEAGE OF VEHICLE, SUGGEST DECARBON SERVICE AND RECHECK. FOR CODE P0141 – CHECKED SHOP KEY. SAYS TO CHECK POWERS AND GROUNDS. CHECKED BATTERY CABLE AND FOUND GROUND CABLE IS BROKEN. SUGGEST REPAIR BATTERY GROUND CABLE AND RECHECK. * SPOKE WITH CUSTOMER AT THE END OF THE DAY AND HE STATED THAT THE HEAD WAS REPLACED. THE NEXT MORNING, PERFORMED CKP RELEARN PROCEDURE AND CHECKED CKP/CMP REFERENCE. RELEARN SUCCESSFUL YET NO CHANGE IN CYLINDER #1 SHOWING MISFIRES AND P0300 STORING. PERFORMED CYLINDER COMPRESSION TEST CYLINDER #1 170 CYLINDER #2 190 ALSO PERFORMED CYLINDER LEAK DOWN TEST. THERE IS A 40% DIFFERENCE. SHOULD BE ABOUT 10%. PRESSURE IS HEARD FROM THROTTLE BODY THROUGH INTAKE INDICATING A LEAKING INTAKE VALVE. NOTE* AT TIMES SECURITY MEASURE ACTIVATES AND ENGINE WON'T START. WAIT A FEW MINUTES AND ENGINE STARTS. THIS SYMPTOM WILL REPEAT AT TIMES. SUGGEST EVALUATION OF CRANK , NO START CONDITION.
HECTOR M. gave our service a 5 star review on 2/3/2022
