engine MAZDA MODEL B-SERIES 2003 (in English) Repair Manual

Working with the engine on
²Automatic transmission:
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
²Manual transmission:
1. Set the parking brake, depress the clutch and place the gearshift in
N (Neutral).
2. Block the wheels.
Note:Do not start your engine with the air cleaner removed and do not
remove it while the engine is running.
OPENING THE HOOD
1. Inside the vehicle, pull the hood
release handle located under
the bottom of the instrument
panel near the steering column.
2. Go to the front of the vehicle
and release the auxiliary latch
that is located under the front
center of the hood.
3. Lift the hood and support it
with the prop rod.
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IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
2.3L I4 engine
1. Windshield washer fluid reservoir
2. Engine coolant reservoir
3. Engine oil dipstick
4. Transmission fluid dipstick (automatic transmission)
5. Engine oil filler cap
6. Brake fluid reservoir
7. Power distribution box
8. Clutch fluid reservoir (manual transmission)
9. Battery
10. Power steering fluid reservoir
11. Air filter assembly
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3.0L V6 engine
1. Engine coolant reservoir
2. Windshield washer fluid reservoir
3. Engine oil filler cap
4. Transmission fluid dipstick (automatic transmission)
5. Engine oil dipstick
6. Brake fluid reservoir
7. Power distribution box
8. Clutch fluid reservoir (manual transmission)
9. Battery
10. Power steering fluid reservoir
11. Air filter assembly
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4.0L SOHC V6 engine
1. Windshield washer fluid reservoir
2. Transmission fluid dipstick (automatic transmission)
3. Engine oil filler cap
4. Engine oil dipstick
5. Brake fluid reservoir
6. Power distribution box
7. Clutch fluid reservoir (manual transmission)
8. Battery
9. Power steering fluid reservoir
10. Air filter assembly
11. Engine coolant reservoir
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194

WINDSHIELD WASHER FLUID
Windshield washer fluid
Add fluid to fill the reservoir if the
level is low. In very cold weather, do
not fill the reservoir completely.
Only use a washer fluid that meets Mazda specification . Refer to
Lubricant specificationsin this chapter.
State or local regulations on volatile organic compounds may restrict the
use of methanol, a common windshield washer antifreeze additive.
Washer fluids containing non-methanol antifreeze agents should be used
only if they provide cold weather protection without damaging the
vehicle's paint finish, wiper blades or washer system.
WARNING: If you operate your vehicle in temperatures below
4.5É C (40É F), use washer fluid with antifreeze protection.
Failure to use washer fluid with antifreeze protection in cold
weather could result in impaired windshield vision and increase
the risk of injury or accident.
Note:Do not put washer fluid in the engine coolant reservoir. Washer
fluid placed in the cooling system may harm engine and cooling system
components.
WASHERFLUIDONLY
RADIATOR
COOLANT
ONLY
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ENGINE OIL
Checking the engine oil
Refer to the service maintenance section for the appropriate intervals for
checking the engine oil.
1. Make sure the vehicle is on level ground.
2. Turn the engine off and wait a few minutes for the oil to drain into
the oil pan.
3. Set the parking brake and ensure the gearshift is securely latched in
P (Park) (automatic transmission) or 1 (First) (manual
transmission).
4. Open the hood. Protect yourself from engine heat.
5. Locate and carefully remove the engine oil level indicator (dipstick).
²2.3L I4 engine
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196

²3.0L V6 engine
²4.0L SOHC V6 engine
MAX MIN
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197

6. Wipe the indicator clean. Insert the indicator fully, then remove it
again.
²If the oil level isbetween the MIN and MAX marks,the oil level is
acceptable,DO NOT ADD OIL.
²If the oil level is below the MIN mark, add enough oil to raise the level
within the MIN-MAX range.
²2.3L I4 engine
SAE 5W-20
²3.0L V6 engine
SAE 5W-20
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²4.0L SOHC V6 engine
SAE 5W-30
²Oil levels above the MAX mark may cause engine damage. Some oil
must be removed from the engine by a service technician.
7. Put the indicator back in and ensure it is fully seated.
Adding engine oil
1. Check the engine oil. For instructions, refer toChecking the engine
oilin this chapter.
2. If the engine oil level is not within the normal range, add only
certified engine oil of the recommended viscosity. Remove the engine
oil filler cap and use a funnel to pour the engine oil into the opening.
3. Recheck the engine oil level. Make sure the oil level is not above the
MAX mark or the letter F in FULL on the engine oil level indicator
(dipstick).
4. Install the indicator and ensure it is fully seated.
5. Fully install the engine oil filler cap by turning the filler cap
clockwise until three clicks can be heard.
To avoid possible oil loss, DO NOT operate the vehicle with the
engine oil level indicator and/or the engine oil filler cap removed.
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Engine Oil Recommendations
2.3L & 3.0L Engines
Look for this certification
trademark.
SAE 5W-20 engine oil is recommended.
Only use oils ªCertified For Gasoline Enginesº by the American
Petroleum Institute (API). Use an equivalent oil Mazda specification.
SAE 5W-20 oil provides optimum fuel economy and durability
performance meeting all requirements for your vehicle's engine.
Change your engine oil and filter according to the appropriate schedule
listed in the service maintenance section.
Do not use supplemental engine oil additives, oil treatments or engine
treatments. They are unnecessary and could, under certain conditions,
lead to engine damage which is not covered by your warranty.
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