OEM Chevrolet Uplander Throttle Body

Chevrolet Uplander Throttle Body Parts Questions & Experts Answers

• Throttle Body
  12609500
  Q: How to replace the throttle body assembly on Chevrolet Uplander?

  A: To replace the Throttle Body assembly, begin by being very careful with the electronic throttle control parts so that they would not be damaged, do not use any thing to try and keep the throttle plate open. To start with, remove the cover of intake manifold, then drain engine cooling system. Next loosening the air cleaner outlet duct then disconnect engine harness electrical connector from the electronic throttle control (ETC). Unscrew the heater inlet and outlet pipe clip nuts from the Throttle Body studs, move them to the heater inlet and outlet hose clamps and move the heater inlet and outlet hose/pipe to its new spot (2, 3). Remove Throttle Body bolts/nuts and take off Throttle Body throwing away the old Throttle Body Gasket. For installation, install a new Throttle Body Gasket with its locating tab aligned to the manifold notch and install Throttle Body to the intake manifold. Change the Throttle Body bolts/nuts and tighten them to 10 n.m (89 lb in), and reposition the hose/pipe (2, 3) and clamps for the heater inlet and outlet. Mount the heater inlet and outlet pipe clip nuts to the Throttle Body studs, also tightening them to 10 n.m (89 lb in). Make sure throttle actuator motor harness connector & seal are in proper position without any damages before re-connecting the engine harness electrical connector to the etc. Reinstall the air cleaner outlet duct, fill the engine cooling system and reinstall the intake manifold cover. Lastly, attach a scan tool to check on proper throttle opening and closed ranges, and manipulate the accelerator pedal to confirm it moves freely from closed throttle to wide open throttle (WOT), check that the vehicle fails to operate in reduced engine power operation when ignition on but the engine off.