Impala V6-3.9L (2007)
28. Position the hoses/pipes.
29. Install the heater inlet and outlet hoses/pipes to the engine pipes and the throttle body studs.
30. Install the heater inlet and outlet hose/pipe clamp nuts to the throttle body studs.
Tighten the nuts to 10 N.m (89 lb in).
31. Position the heater inlet and outlet hose/pipe clamps at the engine pipes.
32. Install the brake booster vacuum hose to the intake manifold.