Chevrolet TRACKER 1999 Owner's Manual page 310

Short Trip/City Scheduled Maintenance
30,000 Miles (50 000 km) (Continued)
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Drain, flush and refill cooling system (or every 30 months, whichever occurs
first). See "Engine Coolant" in the Index for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and neck. Pressure test the cooling
system and pressure cap.
An Emission Control Service. (See footnote
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For Two Wheel Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
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Replace spark plugs.
An Emission Control Service.
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Replace air cleaner filter.
An Emission Control Service.
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Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts as needed.
An Emission Control Service. (See footnote
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Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
– In heavy city traffic where the outside temperature regularly reaches
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90 F (32 C) or higher.
– In hilly or mountainous terrain.
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Second Printing for Chevrolet Tracker Owner's Manual – 1999
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