Intake Air Heater: Service and Repair

Air Heater:

REMOVAL
1. Disconnect both negative battery cables at both batteries.
2. Remove the engine oil dipstick tube mounting bracket bolt at the side of the intake manifold.
3. Remove the two cable nuts and remove cables at the air heater electrical studs.
4. Remove the five bolts retaining the upper half of the intake manifold to the lower half of the intake manifold.
5. Position the intake manifold and manifold connecting tube to the side.
6. Remove the air heater from the intake manifold.

INSTALLATION
1. Clean the mating surfaces of the air heater and intake manifold.
2. Install a new lower and upper gasket to the air heater.
3. Position the air heater to the intake manifold.
4. Install and tighten five bolts to the intake manifold. Tighten to 24 Nm (18 ft lb) torque. (The ground cable for the air heater is connected to one of the intake manifold bolts).
5. Connect the two cables to the air heater.