The powertrain of your GMC includes the engine, transmission, driveshafts, differentials, and axles. To ensure your truck or SUV generates and delivers full force to the wheels with optimal efficiency, each drivetrain component must be kept in tip-top shape with regular preventative maintenance at your local GMC dealership. Here’s an outline of what’s involved in good powertrain care.
Oil Changes and Engine Tune-Ups
As the seat of your GMC’s impressive power, the engine must always be well-lubricated with high-quality motor oil. This means routine oil changes twice a year or more. You should also have the engine examined and tuned up once a year.
Cooling System Inspections
Every component of the cooling system also needs to be professionally inspected once a year. In addition, it’s wise to check the condition of your coolant monthly and have it flushed every two years.
Air Filter Replacements
When the engine air filter becomes blocked by an accumulation of airborne debris, the cylinders can no longer draw in sufficient oxygen to operate properly. Replace your air filter once a year and check it periodically.
Transmission Services
The gearbox and clutch transmit the engine’s power to the axles and wheels. Automatic transmissions are extremely complex and require yearly inspections. You’ll typically need to flush the transmission fluid every 60,000 to 100,000 miles.
Driveshaft Inspections
The driveshaft is an often-overlooked part of the drivetrain that nevertheless serves a vital function. Ensure your driveshafts are properly lubricated and undamaged with yearly inspections.
Differential Fluid Flushes
A smaller gearbox exists inside each of your car’s differentials that also requires high-quality fluid. You’ll need to have your differential seals, gears, and fluid checked once a year.
Axle Seal and Bearing Checks
The axle seals and wheel bearings at the front and rear of your car need to be checked yearly. You’ll occasionally need to replace both seals and fluid.
Transfer Case Maintenance
With all-wheel or four-wheel drive models, you’ll also have a transfer case to maintain. This component transfers power to both the front and rear axles, playing a key role in the drivetrain. If your vehicle has a transfer case, the fluid inside requires flushing every 25,000 miles or so.
Schedule Routine Powertrain Care with Us
The considerable power and dependable performance of your GMC truck or SUV will continue for many years and possibly even decades with regular service. Allow us to take good care of your drivetrain for you. With routine scheduled maintenance, we’ll minimize the risk of parts wearing out or failing prematurely.
Visit Vachon Buick GMC in Old Saybrook, CT, to have your truck or SUV’s powertrain promptly serviced by experience technicians.
