It's not the valves you want to check, it's the vacuum pods. The vacuum actuators inside the door that react from the vacuum pump in the trunk spare well.
You might have to pull some interior carpeting first. All of the door lock vacuum lines are yellow.
The vacuum pods have a thin rubber diaphragm inside, and over the years they dry out, get britte, and crack. Once they crack, they cannot hold vacuum, and therefore cannot retract or extend.
You might have to pull some interior carpeting first. All of the door lock vacuum lines are yellow.
The vacuum pods have a thin rubber diaphragm inside, and over the years they dry out, get britte, and crack. Once they crack, they cannot hold vacuum, and therefore cannot retract or extend.
