Skip the auto shop - Our mechanics make house calls

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

asked by on

what does a transmssion pressure switch do

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

A: Hi there, the automatic transmission will h...

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.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Long stall between 2nd and 3rd gears, plus whining noise

Hello Without having a good impression of the actual symptoms you are experiencing, it would be difficult to tell you the exact problem. I would recommend having your transmission fluid level and condition checked first. Then, if the fluid level...

Q: Gearshift locked

Hello. Most of the time when this shifter gets stuck it is because of the shift interlock. Typically it will lock in park though. If the vehicle is locked in reverse then you either have a shift cable that is...

Q: Clueless

I know this can be a little frustrating when you do so much work and nothing happens. Starting fluid isn't going to be good if it doesn't run afterwards. You may want to inspect your timing belt. I often turn...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.