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.
Normally the vibrations start in the gas pedal, then move to the steering wheel, and into the floorboards the larger the leak gets. When your exhaust system is not working properly, extra heat is flowing into your engine. This can cause the catalytic converter to become damaged.