The transmission system must be well lubricated to keep all moving parts in good condition. The gearbox is lubricated with gearbox oil. In order to function properly, the liquid must always be clean. Next comes the transmission fluid, which keeps dirt and debris out of the fluid.
But How Often Should You Change Your Allison Transmission Filter? The change interval is 75,000 miles for normal use and 25,000 miles for heavy use. Installing a new filter will keep the transmission running properly. In addition, the service life of the transmission is extended.
![How often do you need to change your Allison transmission filter? [+How] (1)](https://i0.wp.com/i1.wp.com/axlewise.com/wp-content/uploads/2023/04/duramax-allison-transmission-fluid-change.png "How often do you need to change your Allison transmission filter? [+How] (1)")
Stay with us and learn all about these filters. You'll learn why they're important, the signs of a worn filter, and how to replace it.
What is an Allison Transmission Filter?
The Allison geared filter is an external spin-off filter. It is located on the driver's side of the transmission. It is placed in a container filled with crunchy liquid.There is a magnet above the filter. When installing the filter, the magnet is placed first. The filter is then screwed from the bottom of the magnet.
Types of filters used in Allison transmissions
There are internal and external filters. The external filter is a spin-off filter. It is located on the driver's side of the gearbox and is easily accessible and can be replaced with a new one. There is an internal filter in the gearbox housing.
A clean filter is important
A clean filter keeps particles and rust away from the transmission oil.You don't want dirt circulating in the system. This will cause your transmission to malfunction and lead to serious problems. Therefore it must be changed regularly.
Signs that your Allison transmission filter needs changing
If you don't know when you last installed the filter, there are a few symptoms to look out for.When the filter life is over, some or all of these issues may worry you.
Strange noises coming from the gearbox
It's usually a rattling noiserelated to the problems with Allison spin filter problems. Check and tighten the filter. This might solve the problem for now. If not, it's time to completely replace the filter.
See also:Grinding noises when driving: types of noises and how to fix them
Difficulty shifting
In case you noticeProblems changing gears, this could be a sign of a filter or even a transmission fluid problem. In most cases, a grinding noise can be heard when shifting gears. If the car does not shift at all, then the problem already exists. Don't waste your time. Please investigate this issue as soon as possible.
Transmission fluid looks dirty or smells burnt
Trans fluid should be clear, red, and not smell burnt.If the transmission fluid is dirty and smells like burnt oil, you need to flush the transmission.
Check if the engine light is on
Check the machineThe lights may come on for a variety of reasons. One of them is a problem with the transmission. You can diagnose the problem using an OBD-II scanner, which will list all the trouble codes.
How Often Should You Change Your Allison Transmission Filter?
GM does not have a specific recommended change interval for Allison filters. They recommend checking the truck's oil strainer regularly. Monitors filter and oil quality and recommends when to change filters.
In general, it is recommended for regular users to change the filter every 75,000 miles.
Factors that affect how often you should change your filter
Of course, if the truck is used for heavy work, the filter and fluid change should be done earlier. It would be a good idea to change them every 25,000 miles.
How to change an Allison transmission filter
Changing the Allison spin filter is an easy part of the process. This is an external filter that is easy to change.
- Raise the car with a jack
- Look for a filter on the driver's side of the transmission
- Unscrew the filter a little and drain the oil
- Remove the filter completely and don't forget to take out the magnet
The next part of the process is to remove the inner filter.
- Pull out the dipstick
- Unscrew the drain plug and drain the oil
- Unscrew the transmission oil pan
- Pull out the filter by hand
- Drain the oil completely
- Check the drain hole for the orange O-ring. If the O-ring is present, remove it.
- Clean the magnet in the oil pan
- Clean the pan and the gasket
- Clean the remaining items covered by the pan
- Lubricate the new O-ring with oil
- Attach the new filter
- Secure the oil pan with bolts
- Fasten the drain plug
- Check the specs for how much oil to add. Usually it's about two gallons.
To change the Allison 1000 transmission external rotary filter:
![How often do you need to change your Allison transmission filter? [+How] (2)](https://i0.wp.com/i.ytimg.com/vi/zgkHN-XUqWI/hqdefault.jpg "How often do you need to change your Allison transmission filter? [+How] (2)")
Benefits of regularly changing the Allison transmission filter
Regular maintenance keeps your truck operationalworks betterfor a longer period of time. TheAllison transmissionThe filter is no different. If you notice a problem with the filter, check it and replace it if necessary.
As the Allison filter wears out, it results in poor fuel economy and transmission problems. Also, the repair price will increase over time.
Improved fuel economy
If the transmission works the way it's supposed to, it will workfuel improvementBusiness. If thethe car is on the rightTools consume less fuel.
Better transmission performance
Regular filter changes guarantee an overall better transmission performance. Shifting becomes easier and the system runs smoothly.
Extended gear life
When the filter is new and clean, dirt and metal shavings will not enter the fuel system. This extends the life of the entire transmission and all of its components.
Reduced risk of costly repairs
If you don't pay attention to the symptoms of a bad transmission, problems can arise. There may be problems shifting gears at first, but in the end the gearbox may no longer work.
Transmission is one of the most expensivesystems in the car. You want to take proper care of it.
How often do you change your Allison transmission filter: Frequently Asked Questions
What is Allison's transmission capacity?
The Allison 3000 holds 29 liters of liquid. The larger Allison 4,000 holds about 48 liters. Some of the fluid is in the transmission pan and the rest is in the transmission cooler, torque converter, and cooling lines.
How often should I change the Duramax gear oil?
It is recommended to change the transmission oil every 25,000 miles.
Which shop sells Allison transmission filters?
You can get it on Amazon, but also in stores like Xcalliber.
final considerations
The transmission in your truck can be subjected to additional stress. Therefore, regular maintenance will help you forget about it. For regular drivers, the interval can range from 50,000 to 75,000 miles. Heavy-duty drivers should think about it every 25,000 miles.
Always be on the lookout for symptoms related to transmission. If you hear a strange noise or the transmission has problems, check the filter.Installation of the new filterIt's less of a headache than having to invest several hundred dollars to repair the transmission.