2021 Chevrolet Tahoe
Mileage
64,204
Service Date
5/16/2024
Services Performed
- 40 POINT AAA INSPECTION
- FOUND MAIN ENGINE STRETCH BELT CAME OFF PULLEYS. ALSO FOUND DAMAGE TO IDLER PULLEY. WILL NEED TO REPLACE IDLER PULLEY, INSTALL NEW BELT AND CHECK ENGINE FOR POSSIBLE OVERHEATING DAMAGE.
- REPLACED BOTH A/C COMPRESSOR BELT AND MAIN SERPENTINE BELT ALONG MAIN IDLER PULLEY. CORRECT ENGINE COOLANT LEVEL(ALMOST 1/2 GALLON. BLEED COOLANT CIRCUIT, FOUND SYSTEM CHARGING OK AT 13.8V AT IDLE.
- SEE DETAILS ON LINE ABOVE.
- SINCE ENGINE WAS RAN WITHOUT BELT, FOUND SIGNS OF ENGINE OVERHEATING, AND COOLANT OVERFLOWING OUT OF RESERVOIR(NO OVERHEATING FAULTS FOUND). AFTER ALL REPAIRS AND COOLANT LEVEL CORRECTED, CHECKED ENGINE WITH 5 GAS ANALYZER, FOUND AT IDLE HYDROCARBONS(HC) WOULD GO OVER 30 PARTS PER MILLION (PPM, NOK MAX 25 PPM), AND WHEN AT 2500 RPM FOUND AT 93 PPM, AND WHEN REVING ENGINE FOUND MAX VISUAL AT 144 PPM. DETERMINED ENGINE HAS INTERNAL DAMAGE WITH POSSIBLE HEAD GASKETS. SINCE CUSTOMER IS FROM OUT OF TOWN, VEHICLE STILL OK TO DRIVE HOME, BUT WILL REQUIRE MONITORING OF COOLANT LEVEL AND ENGINE TEMPERATURE. NOTE: ALSO USED BLOCK TESTER FLUID, FOUND ONLY A SLIGHT CHANGE IN COLOR, NOT COMPLETE CHANGE OF COLOR- LIGHT BLUE TO GREEN.
STEVEN S. gave our service a 5 star review on 5/17/2024
