During the initial period (the first year after your braces come off) you will wear it 24/7 for several months. Later, your orthodontist will tell you that it's OK to wear it only at night -- every night. After another year goes by, you can wear it several nights per week.
The Torque Converter can go bad, and many people mistake an engine miss, torque converter shudder, or an engine vacuum leak for a converter going bad. An out of adjustment brake light switch can also cause the torque converter to no lock up sometimes.A sticking valve within the transmission is the usual cause of an erratic lock up that will mimic a bad converter. Rule out the obvious before you assume its going bad, and/or have it rebuilt.n out of adjustment brake light switch can also cause the torque converter to no lock up sometimes. A sticking valve within the transmission is the usual cause of an erratic lock up that will mimic a bad converter. Rule out the obvious before you assume its going bad, and/or have it rebuilt.
Although sometimes you can't see any irregularity, that's what is causing shudder when a caliper clamps down. You can solve the problem in one or two ways. Remove the brake rotors and have them turned at a brake shop. This is a machining process where the surfaces are smoothed using a special lathe. First, though, the shop will measure the thickness of the rotor. If it's too thin, legally they aren't allowed to turn the rotors.