OEM 2010 Buick Lucerne Throttle Body

2010 Buick Lucerne Throttle Body Parts and Q&A

• Q: How to replace the throttle body assembly on 2010 Buick Lucerne?

  A: Successful Throttle Body assembly replacement requires careful handling of electronic throttle control elements alongside an avoidance of tools to maintain throttle plate position. Start by taking off the intake manifold cover after removing the air cleaner outlet duct. Disconnect the electronic throttle control (ETC) electrical connector, and eliminate the heater inlet and outlet pipe clip nuts from the Throttle Body studs. The heating hoses/pipe should be relocated before removing the Throttle Body bolts/studs along with the Throttle Body itself using a new gasket for replacement. The installation requires a fresh Throttle Body Gasket which needs to sit with its locating tab in position against the manifold notch. Screw the Throttle Body to the intake manifold while tightening bolts to 10 nm (89 lb in). Secure the hose clamps afterward installing the heater inlet and outlet pipe clip nuts onto the Throttle Body studs by tightening them to 10 nm (89 lb in). Verify proper installation of the throttle actuator motor harness connector and its seal before connecting the etc electrical connector. Place back the air cleaner outlet duct while replacing the intake manifold cover. A scan tool should be connected to check throttle functions by operating the pedal from wot to closed positions. Perform the throttle learn procedure only when the vehicle remains outside reduced engine power mode and ignition stands at on and engine status shows off.