Question about Hyundai Tucson
If the auto tranny is shifting erratically and at the wrong time, or if you have similar problem with automatic transmission, then the first thing to do is a code scanning and eventually a transmission fluid replacement.
The OBDII code scanning may address the problem already (see here). If you get no codes,start checking from the TPS. The TPS is the throttle position sensor, located in the throttle body. TPS signal is used by TCM (transmission module) to determine when to shift. This is common cause for wrong shifting. The TPS is tested reading volts at its contacts while operating the pedal. If voltage has gaps or does not go up and down smoothly with pedal pressing, then the TPS is bad. Other transmission problems may be given by transmission include control solenoids failure (located inside valve body in transmission), TCM problems, brake safety switch, and gearbox internal troubles.
Posted on Jan 03, 2011
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Posted on Jan 02, 2017
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