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The transmission pressure control solenoid in the 2004 Chevy Venture can be found inside the oil pan, where it is connected to the transmission's valve body. This component is responsible for regulating the fluid pressure that engages the internal friction plate clutches or drum bands. When the transmission pressure control solenoid malfunctions, it can lead to slipping, potentially causing the transmission to overheat. If not fixed, this slipping can damage the friction clutches and bands, ultimately resulting in transmission failure. A faulty transmission pressure control solenoid may trigger the check engine light without any other noticeable signs, or it could cause slipping in one or more gears.
The solenoids responsible for controlling transmission pressure can be found in the oil pan, where they are linked to the transmission valve body.