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Types of Repairs That Are Performed on Transmissions

Automatic transmissions are complex assemblies that involve myriad parts, such as gear sets, clutches, and bands. Over time, each of these parts can suffer wear and tear. They will eventually fail, causing your tranny to act strangely. Depending on the problem, repairs can be simple and inexpensive, or time-intensive and costly.

 

Below, we'll discuss the main types of repair work that are done on automatic transmissions. I'll describe how leaks are fixed, how worn components are replaced, and when overhauling the assembly is your only option. I'll also provide a few tips for maintaining your car's tranny in order to extend its operating life.

 

Fixing Leaks

 

Leaks are common and can usually be fix easily. You might notice a few drops of reddish fluid on the ground directly below the assembly. This fluid is important to the upkeep and performance of your transmission. If the level runs low and your tranny does not receive a sufficient amount, it might result in expensive damage.

 

When you see leaks on the ground, immediately check the fluid level. Replenish it if needed and take your vehicle to a technician. Leaks usually form at the seals and gaskets. With the exception of your front seal, all of them can be addressed without taking your tranny out of your car. If the front seal is worn and has developed a leak, resealing it requires lifting the assembly out. That can become costly.

 

Replacing Worn Components

 

As noted earlier, any of the individual parts within the transmission can wear down and need to be replaced. The cost of this type of repair work can vary. Some parts, like a few of the electrical components, may be accessible once the oil pan has been removed. Others require the technician to lift the tranny out in order to service them Autel MaxiCOM MK808.

 

One thing to keep in mind about the parts that are serviced without lifting the assembly is that a lot of repair shops will be loathe to provide a warranty Autel MaxiSys MS906BT. They have a good reason. Because they are performing the repairs without taking the assembly out, they cannot inspect other components that may be failing.

 

Overhauling The Assembly

 

After a thorough inspection of your transmission while it remains in your car, your mechanic may be unable to find the source of a problem you're experiencing. He'll need to take the tranny out. Once he does so and inspects the individual parts, he might determine that overhauling (or rebuilding) the entire assembly is the best option.

 

During an overhaul, the transmission is taken apart; every component is laid out on a flat surface. Each one is inspected closely and cleaned. Any pieces that are damaged are replaced. Seals, gaskets, bands, and clutches, are nearly always swapped with replacements, even if only slightly worn.

 

Before reassembling the tranny, the mechanic will search a database for outstanding technical service bulletins. If any bulletins mention defects in the design of the assembly, the mechanic will fix them. Lastly, with all components cleaned or replaced, the transmission is put back together.

 

Keeping Up With Proper Maintenance

 

You should periodically change your transmission fluid just as you would your engine oil. Each vehicle is designed a little differently. Some require the fluid to be changed every 20,000 miles. Others can wait for 60,000 miles or more. Check your owner's manual for the recommended interval.

 

Besides changing the fluid, get into the habit of checking for leaks every two or three weeks. A quick glance under your car should be sufficient to notice whether your tranny is leaking. You should also inspect the color and smell of the fluid every few weeks. Take the dipstick out and make sure it has a reddish color and there is no scent of burning. Finally, if your transmission begins to make strange noises, or starts missing gears or lurching while shifting, have your mechanic inspect it as soon as possible.

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