Front Coolant Pipes

Special tools and workshop equipment required

Removing

Fig 1: Identifying Air Filter Housing Component Location

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-- Remove the air filter housing. Refer to Removal and Installation .

-- Remove the upper intake manifold. Refer to Removal and Installation .

Fig 2: Intake Manifold Upper Section Tightening Specification and Sequence

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-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING .

-- Remove the bolt -arrow- on the retaining clamp.

Fig 3: Identifying Bolt -Arrow- On Clamp

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-- Remove electrical harness connectors -1 and 2- from the bracket.

Fig 4: Component Location: Knock Sensor Connectors

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-- Remove the nut and bolt -arrows- and then remove the mount.

Vehicles with a Manual Transmission:

Fig 5: Removing Coolant Hoses By Loosening Hose Clamps

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-- Remove coolant hoses by loosening the hose clamps -1 to 4-.

-- Remove the bolts and nut -arrows- and then remove the front coolant pipe from the thermostat housing.

Installing

Install in reverse order, paying attention to the following:

Tightening specifications:

NOTE:

Replace the O-ring.

Secure all hose connections with hose clamps of the same type as those equipped by the factory.

-- Install the exhaust gas temperature sensor 1 -G235-. Refer to Exhaust Gas Temperature (EGT) Sensor 1 -G235- .

-- Install the intake manifold upper section and air filter housing. Refer to Removal and Installation .

-- Fill the engine with coolant. Refer to RADIATOR .