Transmissions perform an important function, but issues can be tricky to diagnose without the proper tools and knowledge. Automatic or manual, you might find yourself in a position where you need to deal with a transmission issue. If and when you do, know your limits. If you haven't worked on transmissions before and haven't had any training, stick to checking the fluid and checking for codes when confronted with a transmission problem. If you go too far, you might cause more damage than good, and it could end up costing you big time.
On the other hand, if you have a good set of tools and some mechanical experience, you might consider replacing your transmission as a unit yourself if you find that you have an internal transmission problem you can't fix. Especially with automatic transmissions, this would be a good course to follow. Another option to consider is removing your failed transmission and taking it to a shop that can rebuild it for you. At least you'll be able to save on the removal and replacement of the transmission.
The takeaway here is to know when to call in a professional. With a little detective work, you can get an idea what the issue is. Once you know that, you can then decide on how you're going to proceed. And remember, with automatic transmission problems, it's not always the torque converter that's at fault.
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Written By EricTheCarGuy
Edited By Julie Hucke