Opel Frontera UE. Manual - part 375

6E2–306

6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

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Intake air temperature (IAT) sensor.  Refer to 

Intake

Air Temperature Sensor.

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5. Disconnect the vacuum hose below the air horn.
6. Remove the intake air duct clamp.
7. Disconnect the intake air duct.
8. Disconnect the coolant lines from the throttle body.
9. Remove the bolts from the common chamber.

10. Remove the throttle body from the common chamber.

11. Remove the gasket from the upper intake manifold.

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12. Remove the IAC.  Refer to 

Idle Air Control (IAC)

Solenoid.

13. Remove the TP sensor.  Refer to 

Throttle Position

(TP) Sensor.

Inspection Procedure

NOTE: Do not use solvent of any type when you clean the
gasket surfaces on the intake manifold and the throttle
body assembly.  The gasket surfaces and the throttle
body assembly may be damaged as a result.

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If the throttle body gasket needs to be replaced,
remove any gasket material that may be stuck to the
mating surfaces of the manifold.

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Do not leave any scratches in the aluminum casting.

Installation Procedure

1. Install the TP sensor.  Refer to 

Throttle Position (TP)

Sensor.

2. Install the IAC.  Refer to 

Idle Air Control (IAC)

Solenoid.

3. Install the gasket on the common chamber.
4. Install the throttle body on the common chamber.
5. Secure the gasket and the throttle body with the four

bolts.

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The vacuum lines must be properly routed under
the throttle body before tightening the mounting
bolts.

Tighten

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Tighten the throttle body mounting bolts to 24
N·m (2.4kg·m/17 lb ft.).

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6. Install the coolant lines.
7. Connect all the vacuum lines.
8. Install the intake air duct.
9. Tighten the intake air duct clamp.

10. Connect all the electrical connectors:

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Throttle position (TP) sensor.

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Idle air control (IAC) solenoid.

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6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

D

Intake air temperature (IAT) sensor.  Refer to 

Intake

Air Temperature Sensor.

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11. Install the accelerator cable assembly.  Refer to

Accelerator Cable in Engine Speed Control System..

12. Fill the cooling system.  Refer to 

Cooling System.

13. Install the negative battery cable.

Electronic Ignition System

Removal Procedure

1. Disconnect the negative battery cable.
2. Disconnect the electrical connector at the coil

module.

3. Remove the two screws that secure the coil module to

the rocker cover.

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4. Remove the coil module and the spark plug boot from

the spark plug.

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Twist the coil module while pulling it straight up.

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5. Use the spark plug socket in order to remove the

spark plug from the engine.

Spark Plug Gap Check

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Check the gap of all spark plugs before installation.

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Use a round wire feeler gauge to ensure an accurate
check.

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Plugs installed with the wrong gap can cause poor
engine performance and excessive emissions.

Installation Procedure

NOTE: The plug must thread smoothly into the cylinder
head and be fully seated.  Use a thread chaser if
necessary to clean the threads in the cylinder head.
Cross-threading or failure to fully seat the spark plug can
cause plug overheating, exhaust blow-by gases, or
thread damage.  Do not overtighten the spark plugs.  Over
tightening can cause aluminum threads to strip.

1. Install the spark plug in the engine.  Use the

appropriate spark plug socket.

Tighten

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Tighten the spark plug to 18 N·m (1.8kg·m/13 lb
ft.).

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6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

2. Install the coil module and spark plug boot over the

spark plug.

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3. Secure the coil module to the rocker cover with two

screws.

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4. Connect the electrical connector at the coil module.
5. Connect the negative battery cable.

Catalytic Converter

Removal and Installation Procedure

Refer to 

Engine Exhaust in Engine.

Air Conditioning Relay

Removal Procedure

1. Remove the fuse and relay box cover from under the

hood.

2. Consult the diagram on the cover to determine which

is the correct relay.

3. Pull the relay straight up and out of the fuse and relay

box.

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Installation Procedure

1. Insert the relay into the correct place in the fuse and

relay box with the catch slot facing forward.

2. Press down until the catch engages.

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An audible “click” will be heard.

3. Install the fuse and relay box cover.

EVAP Canister Hoses

Service Information

To view the routing of the EVAP canister hoses, refer to
Vehicle Emission Control Information in Diagnosis.  Use
6148M or equivalent when you replace the EVAP canister
hoses.

EVAP Canister

Removal Procedure

1. Disconnect the negative battery cable.
2. Disconnect the two hoses from the EVAP canister.

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6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS

3. Disconnect the fuel vapor connector and the purge

hose from the EVAP canister vent solenoid.

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4. Remove the two retaining bolts the EVAP canister to

the mounting bracket on the cross member.

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5. Remove the retaining bolt on the mounting bracket

the slide the canister out of mounting bracket.

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Inspection Procedure

1. Inspect the hoses for cracks and leaks.
2. Inspect the canister for a damaged case.

Installation Procedure

1. Slide the canister into mounting bracket the install the

mounting bracket bolt.

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