K 2500 Truck 4WD L6-292 4.8L (1985)
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.