chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Evaporative Emissions System > < Electrically Heated Type
Page 1
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Early Fuel Evaporation ( EFE ): Service and Repair
Vacuum Servo Type

OIL TEMPERATURE THERMAL VACUUM SWITCH (TVS), REPLACE

Inline 6 Cylinder Engines

1.

Disconnect hoses from TVS ports.

2.

Remove TVS.

3.

Reverse procedure to install.

ACTUATOR ASSEMBLY, REPLACE

1.

Disconnect vacuum hoses from actuator.

2.

Remove fasteners holding actuator to manifold or bracket.

3.

Disconnect and remove rod from actuator, if equipped.

4.

Remove actuator assembly.

5.

Reverse procedure to install. Torque actuator rod nuts, if equipped to 25 inch lbs.

V6 & V8 Engines

1.

Remove crossover exhaust pipe.

2.

Disconnect actuator rod from valve.

3.

Remove valve from exhaust pipe.

4.

Reverse procedure to install.

Evaporative Emissions System > < Electrically Heated Type