How to Replace Your Transmission Pressure Sensor Transducer
A transmission pressure sensor transducer or power control solenoid (PCS) is a valve that's duty-cycled-controlled and manages the pressure of your transmission fluid. As a transducer, it's an electronic device that deals with energy conversion from one form to another, from electricity to the ability to sense pressure changes for management purposes. The transmission PCS is responsible for preventing transmission seize-ups due to lack of or excessive fluid. Here's how to replace it if damaged.
Difficulty Level: Moderate
What You'll Need
- Transmission gasket
- Transmission fluid
- Oil pan
- Wrench set
- Socket set
Step 1:First and foremost, disconnect your battery by removing the negative terminal with a wrench and your socket wrench. After doing that, remove the positive cable for good measure. You don't want an electrical hazard, after all. While standing over your engine bay, take off the dipstick from your transmission too.
Step 2:Slide under your vehicle with your tools on hand so that you can get to work in getting your transmission pressure sensor transducer removed. Place an oil pan under the transmission. Unplug the fluid plug on the transmission's bottom to drain all the fluid into the pan.
Step 3:Pull the oil pan from your transmission after you're sure all the oil has been drained. Afterwards, remove about 20 bolts or so with a socket to get to your transducer. Have a magnetic pan ready to store the bolts you've removed so that you won't end up losing them by laying them on the ground with you.
Step 4:You can also use your pan full of transmission fluid to keep them clean and lubricated. Take the gasket out of the rim of your transmission fluid pan or the rim of the transmission itself (it can stick in either one or the other place).
Step 5:As for the fix plate, you need to remove all of its bolts and screws by unthreading them. At this point, you need to look at your user manual for the transmission parts diagram or print one out from the Internet. This will help guide you in identifying the PCS.
Step 6:Pull the two wires off of the transmission pressure sensor transducer and take the component out of your fix plate. This car part is fastened to the fix plate with tabs that require depression before it's pulled off. It could also have screws you must first unscrew as well.
Step 7:After taking out the old PCS, put in a new PCS. Install your replacement transducer and connect the two wires into the correct terminal tabs. Screw back your fix plate in the proper position too. Put in transmission fluid on your new gasket and put it around on the oil pan's rim for good measure.
Step 8:Put your oil pan under the transmission then bolt it into the place. Refill your transmission with transmission fluid as specified by your user manual. Afterwards, observe it for a few weeks to check if the new transmission pressure sensor transducer is working perfectly.
The transmission PCS or transmission pressure sensor transducer is a necessary part of your car because it always gauges whether you have too little or too much fluid in your car. It's not particularly or excessively difficult to replace it. The true difficulty in getting it replaced is locating it since the PCS component is located in different places on different cars, trucks, vans, or jeeps.