Maintenance Schedules

Every 30,000 miles
Carburetor Choke Linkage & Mechanism Inspect/Clean
EGR Valve Operation and Passages Inspect/Clean
Engine Air Filter Replace
Exhaust System [1]
Connections, piping and heat shields Inspect/Replace
Spark Plugs Replace

Every 50,000 miles
EGR Valve (ex. Calif.) Replace
Fuel System Components [2]
Tank, Pipe Lines, Connections, Filler Cap Inspect/Replace
Hoses [3]
Fuel, Vacuum, Vapor and Water Replace

Every 60,000 miles
Crankcase Inlet Air Filter Inspect/Replace
Evaporative Emission Control System Inspect/Clean
Intake Air Temperature Control System Inspect/Clean
Hoses [3]
Secondary Air Hoses, Crankcase Ventilation Hoses Replace
Solenoid Valve Air Filter [4] Replace
Vacuum Operated Emission System Components Inspect/Replace


Every 80,000 miles
Oxygen Sensor Replace
PCV Valve Replace

Every 100,000 miles
Evaporative Emission Canister Replace

[1] EXHAUST SYSTEM (Muffler/Pipe Connections, Heat Shields, Hangers/Brackets)

1. Visually inspect for holes, gas leaks, corrosion and other damage.
2. Check all connecting joints for looseness and exhaust leaks.
3. Visually inspect rubber hangers and brackets for deterioration or damage.
4. Ensure all heat shields are installed and secure.



[2] FUEL SYSTEM (Tank, Pipe Lines and Connections and Fuel Filler Cap)

1. Check for damage or leakage in the fuel lines and connections and looseness of the fuel filler cap.
2. Inspect the surface of fuel hoses for heat and mechanical damage. Hard and brittle rubber, cracking, checking, tears, cuts, abrasions and excessive swelling indicate deterioration of the rubber.
3. If the fabric casing of the rubber hose is exposed by cracks and abrasions in the fuel system, the hoses should be replaced.



[3] HOSES (Fuel, Vacuum, Vapor, Water, Crankcase Ventilation, and Secondary Air Supply)

1. Verify hose routings with vacuum hose diagram for proper installation.
2. Ensure that hoses do not contact heat sources, moving parts, or develope kinks after closing hood.
3. Inspect hose surfaces for heat and mechanical damage. Hard and brittle rubber, cracking, checking, tears, cuts, abrasions, etc..
4. Inspect hose connections, such as clamps and couplings, to ensure they are secure and for proper size installation.

Solenoid Air Filter:

[4] SOLENOID VALVE AIR FILTER
To replace the air cleaner element of the Solenoid Valve, pull out the filter assembly in the direction of the arrow and replace with a new filter assembly.