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We Service and Repair all GMC cars

  • 2004 GMC Yukon

    GMC Yukon
    Mileage
    219,646
    Service Date
    4/16/2026
    Services Performed
    • REMOVED ALL NECESSARY COMPONENTS TO GAIN ACCESS TO REAR MAIN SEAL AREA, INCLUDING TRANSMISSION AND RELATED PARTS. REMOVED DEFECTIVE REAR MAIN SEAL AND INSTALLED NEW REAR MAIN SEAL KIT. CLEANED MATING SURFACES AND ENSURED PROPER SEALING DURING INSTALLATION. REASSEMBLED ALL COMPONENTS IN REVERSE ORDER AND PERFORMED ALL NECESSARY ADJUSTMENTS TO ENSURE PROPER FITMENT AND ALIGNMENT. VERIFIED ALL FASTENERS WERE TORQUED TO SPECIFICATION. AFTER REPAIR, INSPECTED FOR OIL LEAKS AND CONFIRMED NO LEAKS PRESENT AT THIS TIME. VEHICLE IS OPERATING AS DESIGNED.
    • CONNECTED SCAN TOOL AND RETRIEVED STORED CODES: P0302 – CYLINDER 2 MISFIRE DETECTED AND P0306 – CYLINDER 6 MISFIRE DETECTED. PERFORMED INITIAL INSPECTION OF IGNITION SYSTEM AND FOUND SPARK PLUGS WERE FOULED. REPLACED SPARK PLUGS AND CONNECTED A SPARK TESTER TO THE IGNITION COILS. STARTED ENGINE AND VERIFIED SPARK WAS PRESENT BUT INTERMITTENT ON AFFECTED CYLINDERS. ATTACHED LAB SCOPE WITH INDUCTIVE AMMETER TO IGNITION COIL CONTROL CIRCUIT AND MONITORED IGNITION COIL PRIMARY AMPERAGE WAVEFORM WHILE ENGINE WAS RUNNING. LAB SCOPE PATTERN SHOWED IRREGULAR AND ABNORMAL PRIMARY CURRENT RAMP, INDICATING INTERNAL FAILURE/SHORT IN THE IGNITION COIL. TEST RESULTS CONFIRM IGNITION COIL IS FAULTY AND CONTRIBUTING TO MISFIRES ON CYLINDERS 2 AND 6.
    • REMOVED AND REPLACED ALL SPARK PLUGS AND TWO IGNITION COILS. REMOVED NECESSARY COMPONENTS TO GAIN ACCESS TO IGNITION SYSTEM AND EXTRACTED ALL WORN SPARK PLUGS. INSTALLED NEW SPARK PLUGS TO MANUFACTURER SPECIFICATIONS. REMOVED FAULTY IGNITION COILS AND INSTALLED TWO NEW IGNITION COILS ON AFFECTED CYLINDERS, ENSURING PROPER CONNECTION AND FITMENT. REASSEMBLED ALL COMPONENTS AND VERIFIED ALL ELECTRICAL CONNECTORS WERE SECURE. STARTED ENGINE AND PERFORMED OPERATION CHECK, CONFIRMING SMOOTH ENGINE PERFORMANCE WITH NO MISFIRES PRESENT. CLEARED STORED CODES AND VERIFIED SYSTEM IS OPERATING AS DESIGNED.
     
    JARROD H. gave our service a 5 star review on 4/16/2026

  • 2020 GMC Canyon

    GMC Canyon
    Mileage
    74,628
    Service Date
    11/22/2025
    Services Performed
    • Connected a scan tool and found code P0128 – Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature). With the scan tool connected to monitor live data, found that the engine coolant temperature parameter was below the specified 195 to 212 degrees Fahrenheit normal operating temperature. Used a non-contact pyrometer to verify the actual temperature at the engine coolant thermostat housing inlet and outlet and found that the temperature was equal but below the normal operating temperature. Performed a road test and found that the engine temperature never reached the normal operating temperature according to the scan tool. Found that the thermostat was stuck open. The engine thermostat is integrated into the thermostat housing and is replaced as an entire unit. These test results verified that the engine coolant thermostat and thermostat housing were faulty.
    • DRAIN COOLING SYSTEM COMPLETELY. REMOVE ALL NECESSARY COMPONENTS TO GAIN PROPER ACCESS TO THE THERMOSTAT ASSEMBLY, INCLUDING ANY HOSES, COVERS, OR BRACKETS OBSTRUCTING THE AREA. REMOVE AND REPLACE THE THERMOSTAT HOUSING, THE THERMOSTAT ITSELF, AND THE INCLUDED GASKET TO ENSURE A PROPER SEAL AND CORRECT OPERATION. REASSEMBLE ALL COMPONENTS, MAKING ANY NECESSARY ADJUSTMENTS TO ENSURE CORRECT FITMENT. REFILL THE SYSTEM WITH FRESH ANTI-FREEZE COOLANT, BLEED ANY AIR FROM THE SYSTEM, AND THOROUGHLY TEST ALL AFFECTED AREAS TO VERIFY PROPER ENGINE TEMPERATURE REGULATION AND LEAK-FREE OPERATION.
     
    STEVE A. gave our service a 5 star review on 12/4/2025

  • 2015 GMC Acadia

    GMC Acadia
    Mileage
    156,144
    Service Date
    2/15/2025
    Services Performed
    • VEHICLE SERVICE: – CHANGE ENGINE OIL AND FILTER – TIRE INFLATION CHECK – BRAKE COMPONENT INSPECTION – ALL FLUID LEVEL CHECK – RESET MAINTENANCE COUNTER
     
    LYLE L. gave our service a 5 star review on 2/15/2025

  • 2017 GMC Terrain

    GMC Terrain
    Mileage
    58,990
    Service Date
    1/2/2025
    Services Performed
    • Confirmed the customer's complaint and found the TPMS was inoperative. Used a tire pressure gauge to measure the air pressure in each tire and found the measured tire pressures were within the specified range. Performed a road test, used a scan tool to retrieve sensor data from each tire pressure sensor and found a tire pressure sensor was not communicating with the scan tool. Removed the tire and wheel assembly, dismounted the tire, inspected the tire pressure sensor and found no obvious concerns. These tests verified the tire pressure sensor was faulty.
    • REMOVE AND REPLACE LEFT REAR TIRE PRESSURE SENSOR
     
    MAYRA J. gave our service a 5 star review on 1/3/2025

  • 2022 GMC Canyon

    GMC Canyon
    Mileage
    19,157
    Service Date
    5/10/2024
    Services Performed
    • VEHICLE SERVICE: – CHANGE ENGINE OIL AND FILTER – TIRE INFLATION CHECK – BRAKE COMPONENT INSPECTION – ALL FLUID LEVEL CHECK – RESET MAINTENCE COUNTER
    • REPAIR FRONT HOOD LATCH
     
    AUSTIN N. gave our service a 5 star review on 5/10/2024

  • 2010 GMC Acadia

    GMC Acadia
    Mileage
    184,066
    Service Date
    9/30/2022
    Services Performed
    • Confirmed the customer's concern and found the engine stalled. Using a multi-meter, measured voltage across the battery terminals and found voltage was below the specified range. Charged the battery, used a battery conductance tester to test the battery, and found the battery was able to conduct the specified amount of current. With the engine at idle, measured voltage across the battery terminals and found voltage decreased. Performed an inspection of the alternator wiring harness and connector, but detected no obvious faults. Used an alternator load tester to test the alternator by placing the battery under load, raised the engine speed to 1,500 RPM and found the measured alternator output was below the specified minimum amperage. These test results verified the alternator was faulty.
    • MAKE SURE ALL WIRES ARE INSERTED INTO PROPER CAVITIES. RE-ASSEMBLE BACK TOGETHER. CONNECT BATTERY. MAKE SURE ALL OTHER WIRES ARE HARNESSED PROPERLY. TEST ALL AFFECTED SYSTEM.
     
    ALEX L. gave our service a 5 star review on 10/2/2022