Questions and Answers

Replacing A Buick Regal Vehicle Speed Sensor
Q. Hi, 1991 Buick Regal 3.8 liter. I know where the Vehicle Speed sensor (VSS) is and can see one bolt. I had it on a hoist and see no way of getting it off. I see even less from below. I can't get my hand in there, or a wrench.

Can you tell me the procedure to take it off, wheel removal, drop motor etc.? Any help much appreciated.

A. It's not easy. But with a long extension and flex socket you can get the bolt out and replace the VSS.

LOCATION:
RH rear of engine, on transaxle.

REMOVE OR DISCONNECT:

• Electrical Connector.
• Two speed sensor housing cap screws.
• Speed sensor assembly. NOTE: The speed sensor is serviced as a complete assembly and includes the housing, coil, magnet, washers, wave spring washer and housing cover.The VSS rotor is serviced with the transmission governor assembly.

INSTALL OR CONNECT:

• O-ring onto speed sensor assembly housing.
• Speed sensor assembly to transmission housing.
• Speed sensor housing cap screws. Tighten VSS housing screws to 27 Nm (20 ft lbs).
• Electrical connector.