Transmission fluid serves several essential purposes when it comes to keeping your transmission operating properly. In addition to cooling the transmission, transmission fluid also helps lubricate the system’s moving parts and facilitates gear shifts. Essentially, it serves as an oil, lubricant, and hydraulic fluid all at the same time. Generally, transmission fluid should be changed every 30,000 and 60,000 miles; however, it is important to periodically check its quality and level between service intervals to be safe. After all, low or contaminated transmission fluid is a common, yet easily avoidable cause of many transmission issues. To learn how to check manual transmission fluid and help keep your vehicle in proper shape, continue reading.
Let the Engine Rest
While you may need to leave the engine on while checking its transmission fluid—check your vehicle’s service manual for specific instructions. It is important to let it rest for a few minutes before starting the process. If the engine isn’t allowed to rest, the transmission fluid may be too hot and could burn you during the inspection process. As such, it is important to switch the engine off and let it rest for at least two minutes before trying to check the manual transmission fluid levels.
Locate the Filler Plug
Next, you will need to locate the filler plug. Most manual transmissions don’t have a dipstick to check the fluid levels, so you will need to remove the filler plug. Typically, the filler plug is located on the side of the transmission. However, it can also be located on top of the transmission. In order to determine where the plug is and the type of spanner needed to unscrew it, refer to your vehicle’s service manual.
Use a Jack To Access the Filler Plug
The next step in how to check manual transmission fluid is to remove the filler plug. In some cases when the vehicle’s ground clearance is low, you will need to jack up your car in order to gain access to the filler plug. When doing so, make sure that your car is parked on a stable, level surface, the clutch is disengaged, and the parking brake is set. Then, use the recommended type of spanner according to your vehicle’s service manual to unscrew the plug.
Check the Transmission Fluid
Lastly, it is time to check the transmission fluid. Generally, the transmission fluid is filled up so that it is just below the filler cap. However, you should check your service level for confirmation. Because there is no gauge, simply poke your finger, a screwdriver, or another suitable item through the hole to determine how high the fluid is in the sump. In some cases, the fluid may overflow. If it does, it is likely at the right level and you should quickly put the cap back on.
In addition to checking the fluid level, you should also check its quality. To do so, examine the color and scent of the fluid. Transmission fluid should have a clear pinkish color. If it is brown, black, has particles in it, or smells burnt, then it likely needs to be replaced.
Transparts Warehouse is a leading transmission supply shop. We specialize in providing top quality new and used parts for both manual and automatic transmission models. For more information regarding our competitively priced products, contact us today.
