Whats the best way to diagnose my transmission problem?
A In the days before computers, diagnosing an automatic transmission problem was pretty straight-forward and often could be confirmed by an experienced technician with a test drive alone. Now, however, computers are controlling more and more functions in our vehicles. For example, many vehicles use the same computer or share information with another computer to control fuel injection, ignition and transmission. Obviously, for any automotive problem the correct diagnosis is essential. For example, if your transmission is not shifting correctly, the problem could be mechanical or it could be due to a problem with messages the computer is receiving from sensors, or sending to the transmission. A mis-diagnosis could result in repairs that don’t fix the problem. For an accurate diagnosis the technician will need to drive your vehicle with scanning gauges attached and may need to carry out other sophisticated tests. Asking for estimates on the phone may produce a variety of price quotes, but
