Q: what does a transmission pressure switch do for you car

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what does a transmssion pressure switch do

My car has 242000 miles.
My car has an automatic transmission.

Hi there, the automatic transmission will have pressure switches that activate a system to engage a gear or gear set. When the vehicle wants second gear, the computer will activate the pressure switch to allow hydraulic pressure to clamp down on the second gear set so the vehicle can shift to second gear. When these switches fail, a fault code may be stored and you may notice the vehicle does not operate properly.

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