Allison Transmission Service and Repair
A powerful diesel truck needs a transmission capable of handling the torque, weight, towing, and demanding conditions that come with heavy-duty work. Many Chevrolet Silverado HD trucks equipped with Duramax Diesel engines use Allison transmissions designed for demanding applications.
At Jason Lewis Chevrolet in Livingston, our technicians service and repair Allison transmissions in Chevrolet trucks. From routine transmission maintenance and fluid service to diagnosing shifting concerns and repairing transmission problems, our team can help keep your Duramax-equipped Chevrolet performing properly.
Why Allison Transmission Service Matters
An automatic transmission operates under considerable heat, pressure, and load. This can be especially important for diesel trucks that regularly tow trailers, haul heavy loads, travel long distances, or operate in demanding conditions.
Transmission fluid provides lubrication, helps control operating temperature, and allows the transmission's internal components to operate properly. Over time, transmission fluid can become contaminated or lose some of its ability to protect the transmission.
Regular transmission service helps maintain:
- Proper shifting performance
- Transmission lubrication
- Temperature control
- Hydraulic system operation
- Internal component protection
- Towing and hauling performance
- Long-term transmission reliability
When Should an Allison Transmission Be Serviced?
The correct service interval depends on the specific Chevrolet truck, transmission, model year, fluid, and driving conditions. Always follow the maintenance schedule for your particular vehicle.
For many Chevrolet Duramax-equipped heavy-duty trucks, 45,000 miles is an important transmission service interval for replacing the automatic transmission fluid and filters. Trucks that regularly tow heavy loads, haul substantial payloads, operate in severe conditions, or experience unusually demanding use may require more frequent service.
If you are unsure when your Allison transmission was last serviced, the Certified Service team at Jason Lewis Chevrolet can help determine what maintenance your truck needs.
What Does Allison Transmission Service Include?
Transmission service is more than simply replacing fluid.
Depending on the Chevrolet truck and Allison transmission, service may include:
- Draining the existing transmission fluid
- Inspecting the fluid for unusual color, odor, or contamination
- Replacing the appropriate transmission filter or filters
- Inspecting the transmission pan and related components when applicable
- Inspecting for fluid leaks
- Refilling the transmission with the correct manufacturer-approved fluid
- Checking the transmission fluid level
- Inspecting transmission-related components
- Checking for transmission diagnostic codes
- Evaluating shifting operation
- Road-testing the vehicle when appropriate
The exact service procedure depends on the transmission and vehicle. Our technicians follow the applicable Chevrolet and transmission manufacturer service requirements for the vehicle being serviced.
Allison Transmission Fluid and Filters
Transmission fluid is an important part of the transmission's operating system. Using the correct fluid specification is essential because different transmissions can require different fluids.
Allison Transmission publishes approved fluid specifications for its products, including TES 668 and other approved fluids for applicable Allison transmissions.
Jason Lewis Chevrolet technicians can determine the appropriate fluid and filter requirements for your specific Chevrolet truck before performing the service.
Signs Your Allison Transmission May Need Attention
Routine maintenance can help prevent problems, but transmission problems can still develop.
Have your truck inspected if you notice:
- Delayed engagement when shifting into Drive or Reverse
- Hard or unusually harsh shifts
- Slipping between gears
- Transmission slipping under load
- Shuddering or vibration
- Unusual transmission noises
- Difficulty shifting
- Transmission fluid leaks
- Unusual transmission fluid odor
- A transmission warning message
- Check Engine or other warning lights
- Changes in shifting behavior while towing
A transmission concern should not be ignored. Continuing to operate a truck with a developing transmission problem can potentially allow a relatively small problem to become a more expensive repair.
Allison Transmission Service for Duramax Diesel Trucks
Duramax diesel engines produce substantial torque, and the transmission must transfer that power to the wheels while managing the demands placed on the vehicle.
That is particularly important for Silverado HD owners who use their trucks for:
- Towing trailers
- Hauling equipment
- Construction and work applications
- Farm and agricultural use
- Long-distance driving
- Recreational towing
- Heavy payloads
Regular transmission maintenance is especially important when a truck is frequently operated under heavy loads.
Allison Transmission Diagnostics and Repair
Not every transmission problem requires a transmission replacement.
Our technicians can diagnose transmission concerns to determine whether the problem may involve fluid condition, filters, electronic controls, sensors, wiring, shifting components, or internal transmission components.
Depending on the diagnosis, Allison transmission service or repair may include:
- Transmission fluid and filter service
- Leak diagnosis and repair
- Shift-related diagnosis
- Electronic transmission diagnostics
- Sensor or electrical diagnosis
- Transmission control system diagnosis
- Component replacement
- Internal transmission repair when necessary
The goal is to identify the actual cause of the problem before recommending repairs.
Why Choose Jason Lewis Chevrolet for
Allison Transmission Service?
When you bring your Duramax-equipped Chevrolet truck to Jason Lewis Chevrolet, you have access to technicians who understand the requirements of Chevrolet trucks and their transmission systems.
Our service department provides:
Factory-trained Chevrolet technicians
Allison transmission service and repair
Diagnostic equipment for Chevrolet vehicles
Manufacturer-recommended service procedures
Appropriate transmission fluids and filters
Experience servicing Duramax Diesel trucks
Professional diagnosis before repair recommendations
Whether your truck needs routine transmission maintenance or you are experiencing a shifting or performance concern,
our team can help determine what your Chevrolet needs.
Frequently Asked Questions
How often should an Allison transmission be serviced?
The correct interval depends on the vehicle, transmission, fluid, and operating conditions. For many Chevrolet Duramax-equipped heavy-duty trucks, 45,000 miles is a commonly specified interval for automatic transmission fluid and filter replacement. Your specific Chevrolet owner's manual and maintenance schedule should be followed.
Does towing require more frequent transmission service?
Heavy towing and hauling place additional heat and load on the transmission. Depending on the vehicle and operating conditions, severe or demanding use may require more frequent maintenance. Our technicians can help determine the appropriate service schedule for your truck.
What happens if Allison transmission fluid is not changed?
Over time, transmission fluid can become contaminated and lose some of its protective properties. Delaying required maintenance may contribute to increased wear, poor shifting, or other transmission concerns.
Does Allison transmission service include changing the filter?
Yes, when the applicable maintenance procedure calls for filter replacement. The number and type of filters can vary by transmission and vehicle.
Can Jason Lewis Chevrolet repair Allison transmissions?
Yes. Jason Lewis Chevrolet services and repairs Allison transmissions in applicable Chevrolet trucks. Our technicians can diagnose transmission concerns and recommend the appropriate repair or maintenance.
Should I service my transmission before towing season?
If your truck is approaching its scheduled transmission service interval, having the transmission serviced before a period of heavy towing can be a sensible part of preparing your vehicle. A pre-towing inspection can also identify leaks, fluid concerns, or other issues before you put the truck under a heavy load.
Schedule Allison Transmission Service
in Livingston, TN
Your Duramax Chevrolet truck is designed to work hard. Proper transmission maintenance can help protect the system responsible for transferring that diesel power to the wheels.
If your Chevrolet Silverado HD is approaching its transmission service interval, or if you are experiencing unusual shifting, slipping, vibration, or other transmission concerns, schedule service with Jason Lewis Chevrolet in Livingston, TN.
Our technicians can inspect your truck, determine the appropriate Allison transmission service, and help keep your Chevrolet ready for the work ahead.