2003 CHEVROLET TRACKER differential

75,000 Miles (125 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qChange automatic transmission ¯uid and ®lter if
the vehicle is mainly driven under one or more
of these conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC)
or higher.
þ In hilly or mountainous terrain.
þ When doing frequent trailer towing.
þ Uses such as found in taxi, police or delivery
service.
If you do not use your vehicle under any of these
conditions, change the ¯uid and ®lter every
100,000 miles (166 000 km).
qInspect engine air cleaner ®lter. If necessary, replace
the ®lter. If vehicle is driven in dusty/dirty conditions,
inspect ®lter at every engine oil change. See
Engine
Air Cleaner/Filter on page 5-20for more information.An Emission Control Service. (See footnote ².)
qChange manual transmission ¯uid.
qChange transfer case ¯uid.qChange differential ¯uid.
qInspect propeller shafts and U-joints for looseness and
damage (or every 15 months, whichever occurs ®rst).
Inspect more frequently if used off-road or for pulling a
trailer. Tighten U-joint ¯ange bolts if necessary.
78,000 Miles (130 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qIf Equipped: Inspect passenger compartment air ®lters.
qRotate tires. See
Tire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote +.)
81,000 Miles (135 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
84,000 Miles (140 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qIf Equipped: Inspect passenger compartment air ®lters.
qRotate tires. See
Tire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote +.)
6-14

qChange differential ¯uid.
qReplace fuel ®lter (or every 30 months, whichever
occurs ®rst).
An Emission Control Service.
(See footnote ².)
qInspect propeller shafts and U-joints for looseness
and damage (or every 15 months, whichever
occurs ®rst). Inspect more frequently if used off-road
or for pulling a trailer. Tighten U-joint ¯ange bolts
if necessary.
93,000 Miles (155 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
96,000 Miles (160 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qIf Equipped: Inspect passenger compartment
air ®lters.
qRotate tires. See
Tire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote +.)
99,000 Miles (165 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
100,000 Miles (166 000 km)
qIf you haven't used your vehicle under severe service
conditions listed previously and, therefore, haven't
changed your automatic transmission ¯uid, change
both the ¯uid and ®lter.
120,000 Miles (200 000 km)
qReplace evaporative emission canister and air
suction ®lter (or every 120 months, whichever occurs
®rst).
An Emission Control Service.
6-16

qDrain, ¯ush and re®ll cooling system (or every
30 months, whichever occurs ®rst). SeeEngine
Coolant on page 5-28for 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 ².)
qInspect ignition coil plug cap (or every 30 months,
whichever occurs ®rst).An Emission Control
Service. (See footnote ².)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-20for more information.An Emission Control Service.
qInspect 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 ².)
qChange manual transmission ¯uid.
qChange transfer case ¯uid.
qChange differential ¯uid.
qReplace fuel ®lter (or every 30 months, whichever
occurs ®rst, or sooner if ®lter is clogged).
An Emission
Control Service. (See footnote ².)
qInspect propeller shafts and U-joints for looseness and
damage (or every 15 months, whichever occurs ®rst).
Inspect more frequently if used off-road or for pulling a
trailer. Tighten U-joint ¯ange bolts if necessary.
37,500 Miles (62 500 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control
Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote +.)
45,000 Miles (75 000 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control
Service.
qInspect engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-20for more information.An Emission Control Service. (See footnote ².)
qIf Equipped: Inspect passenger compartment air
®lters.
qInspect automatic transmission ¯uid hose (or every
45 months, whichever occurs ®rst).
6-19

qDrain, ¯ush and re®ll cooling system (or every
30 months, whichever occurs ®rst). SeeEngine
Coolant on page 5-28for 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 ².)
qReplace spark plugs.An Emission Control Service.
qInspect ignition coil plug cap (or every 30 months,
whichever occurs ®rst).An Emission Control
Service.
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-20for more information.An Emission Control Service.
qInspect 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 ².)
qChange manual transmission ¯uid.
qChange transfer case ¯uid.
qChange differential ¯uid.
qReplace fuel ®lter (or every 30 months, whichever
occurs ®rst.
An Emission Control Service.
(See footnote ².)
qInspect emission system hoses and replace as
necessary.An Emission Control Service.
(See footnote ².)
qInspect propeller shafts and U-joints for looseness and
damage (or every 15 months, whichever occurs ®rst).
Inspect more frequently if used off-road or for pulling a
trailer. Tighten U-joint ¯ange bolts if necessary.
qDrain, re®ll and bleed the brake system.
67,500 Miles (112 500 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote +.)
75,000 Miles (125 000 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control Service.
qInspect engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-20for more information.An Emission Control Service. (See footnote ².)
qIf Equipped: Inspect passenger compartment
air ®lters.
6-21

qDrain, ¯ush and re®ll cooling system (or every
30 months, whichever occurs ®rst). SeeEngine
Coolant on page 5-28for 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 ².)
qInspect ignition coil plug cap (or every 30 months,
whichever occurs ®rst).An Emission Control Service.
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-20for more information.An Emission Control Service.
qInspect 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 ².)
qChange manual transmission ¯uid.
qChange transfer case ¯uid.
qChange differential ¯uid.
qReplace fuel ®lter (or every 30 months, whichever
occurs ®rst.
An Emission Control Service.
(See footnote ².)
qInspect propeller shafts and U-joints for looseness and
damage (or every 15 months, whichever occurs ®rst).
Inspect more frequently if used off-road or for pulling a
trailer. Tighten U-joint ¯ange bolts if necessary.
qRotate tires. See
Tire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote +.)
97,500 Miles (162 500 km)
qChange engine oil and ®lter (or every 7.5 months,
whichever occurs ®rst).An Emission Control Service.
qRotate tires. SeeTire Inspection and Rotation on
page 5-60for proper rotation pattern and additional
information.(See footnote +.)
100,000 Miles (166 000 km)
qIf you haven't used your vehicle under severe service
conditions listed previously and, therefore, haven't
changed your automatic transmission ¯uid, change
both the ¯uid and ®lter.
120,000 Miles (200 000 km)
qReplace evaporative emissions canister and air
suction ®lter (or every 120 months, whichever occurs
®rst).
An Emission Control Service.
6-23

At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your belts,
buckles, latch plates, retractors and anchorages are
working properly. Look for any other loose or damaged
safety belt system parts. If you see anything that might
keep a safety belt system from doing its job, have it
repaired. Have any torn or frayed safety belts replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag
system does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace
blade inserts that appear worn or damaged or that
streak or miss areas of the windshield. Also see
Cleaning the Outside of Your Vehicle on page 5-82.
Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold,
damp weather more frequent application may be
required. See
Part D: Recommended Fluids and
Lubricants on page 6-30.
Fluid Level Check
Check the transfer case, axle differential(s) and
automatic or manual transmission ¯uid levels and add
as needed. See
Rear Axle on page 5-52,Four-Wheel
Drive on page 5-53, andAutomatic Transmission
Fluid on page 5-23orManual Transmission Fluid on
page 5-26. Check for leaks. A ¯uid loss in these systems
could indicate a problem. Have the system inspected
and repaired at once.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
speci®ed in Part D.
Body Lubrication Service
Lubricate all body door hinges. Also lubricate all
hinges and latches, including those for the hood,
rear compartment, glove box door, console door and
folding seat hardware. Part D tells you what to use.
More frequent lubrication may be required when
exposed to a corrosive environment.
6-25