Maintenance Schedules

NOTE: Maintenance should be performed at more frequent intervals if:
Driving in dusty, sandy, or salty conditions, Idling periods are extensive, short-trip operation at freezing temperatures, or heavy city traffic driving during hot weather above 32°C (90°F).

Every 30,000 miles
Engine Air Filter Replace
Exhaust System [1]
Connections, piping and heat shields Inspect/Replace
Spark Plugs Replace

Every 50,000 miles
EGR Valve Replace
EGR Valve Operation and Passages Inspect/Clean
Fuel System Components [2]
Tank, Pipe Lines, Connections, Filler Cap Inspect/Replace
Hoses [3]
Fuel and Vapor Replace

Every 60,000 miles
Crankcase Inlet Air Filter Inspect/Replace
PCV Valve Clean/Replace
Evaporative Emission Control System Inspect/Clean
Check for leaks & clogging except canister
Hoses [3]
Vacuum, Water and Crankcase Ventilation Replace
Vacuum Operated Emission System Components Inspect/Replace

Every 80,000 miles
Oxygen Sensor Inspect/Replace


Every 100,000 miles
Evaporative Emission Canister Replace




[1] EXHAUST SYSTEM--Or Every 2 Years
(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--Or Every 5 Years
(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--Or Every 2 Years
(Fuel, Vacuum, Vapor, Water, and Crankcase Ventilation)

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 or brittle rubber, cracking, checking, tears, cuts, abrasions, etc...
4. Inspect hoses at points of connection. Ensure that hoses are secure and the proper size hose clamps are being used.