Do tuners damage transmissions? Not necessarily. Tuners only make your engine work as hard as you allow it to. The only way to damage your transmission is by exceeding its maximum horsepower limit. Be sure to practice caution when driving on a tuned truck, especially if it is a stock one. If you’re planning to tow with it, for example, you shouldn’t try it on a tuner that puts out 120 horsepower. A 60 to 70 horsepower tune will do the trick.
Most tuners work on one vehicle. Some allow you to switch between two vehicles after removing one. Others, however, require you to keep the device plugged in and unplugged, which is a common mistake. In either case, the tuner may have communication problems and may not work as it should. If your tuner doesn’t work correctly, don’t worry – there are solutions for this problem.
A tuner’s main purpose is to increase horsepower and torque. Having more power means more speed, better handling and more towing. A dyno session may last anywhere from 2 hours to a few days, depending on how complex your setup is. A tidy-up tune may take just a few hours, while a full engine setup can take a couple of days. It’s important to remember to check the switch correctly – there is no universal switch!
Another common question is how long does a tuner need to stay plugged in. The answer will vary depending on the tuning device and how it’s installed. Most tuners have to be plugged in for several hours for best results, so you should keep it plugged in during the entire tuning process. Once you’ve tuned your car properly, it should run smoothly without any problems. If it is still acting up after the tune, you should try removing the tuner and try again.