2003 MAZDA MODEL B-SERIES service

Check the power steering fluid. Refer to the service maintenance section
for the service interval schedules. If adding fluid is necessary, use only
MERCONtAT F.
1. Start the engine and let it run until it reaches normal operating
temperature (the engine coolant temperature gauge indicator will be
near the center of the normal area between H and C).
2. While the engine idles, turn the steering wheel left and right several
times.
3. Turn the engine off.
4.If your vehicle is equipped with a 3.0L V6 engine,check the
fluid level on the dipstick. It should be within the FULL HOT range.
Do not add fluid if the level is within this range.
5.If your vehicle is equipped with a 4.0L SOHC V6 or 2.3L I4
engine,check the fluid level in the reservoir. It should be between
the MIN and MAX lines. Do not add fluid if the level is within this
range.
6. If the fluid is low, add fluid in small amounts, continuously checking
the level until it reaches the FULL HOT range. Be sure to put the
dipstick back in the reservoir.
BRAKE FLUID
Checking and adding brake fluid
Brake fluid should be checked and
refilled as needed. Refer to the
service maintenance section for the
service interval schedules.
1. Clean the reservoir cap before
removal to prevent dirt or water
from entering the reservoir.
Maintenance and Specifications
221

2. Visually inspect the fluid level.
3. If necessary, add brake fluid
from a clean un-opened
container until the level reaches
MAX. Do not fill above this line.
4. Use only a DOT 3 brake fluid
certified to meet Mazda specification . Refer toLubricant
specificationsin this chapter.
WARNING: Brake fluid is toxic. If brake fluid contacts the
eyes, flush eyes with running water for 15 minutes. Seek
medical attention if irritation persists. If taken internally, drink
water and induce vomiting. Seek medical attention immediately.
WARNING: If you use a brake fluid that is not DOT 3, you will
cause permanent damage to your brakes.
WARNING: Do not let the reservoir for the master cylinder run
dry. This may cause the brakes to fail.
CLUTCH FLUID (IF EQUIPPED)
Check the fluid level. Refer to the service maintenance section for the
service interval schedules.
During normal operation, the fluid level in the clutch reservoir should
remain constant. If the fluid level drops, refill the fluid level to the step
in the reservoir.
Use only a DOT 3 brake fluid designed to meet Mazda specification.
Refer toLubricant Specificationsin this chapter.
WARNING: Brake fluid is toxic. If brake fluid contacts the
eyes, flush eyes with running water for 15 minutes. Seek
medical attention if irritation persists. If taken internally, drink
water and induce vomiting. Seek medical attention immediately.
MAX
Maintenance and Specifications
222

1. Clean the reservoir cap before
removal to prevent dirt and
water from entering the
reservoir.
2. Remove cap and rubber
diaphragm from reservoir.
3. Add fluid until the level reaches
the step in the reservoir.
4. Reinstall rubber diaphragm and
cap onto reservoir.
TRANSMISSION FLUID
Checking automatic transmission fluid (if equipped)
Refer to your service maintenance section for scheduled intervals for
fluid checks and changes. Your transmission does not consume fluid.
However, the fluid level should be checked if the transmission is not
working properly, i.e., if the transmission slips or shifts slowly or if you
notice some sign of fluid leakage.
Automatic transmission fluid expands when warmed. To obtain an
accurate fluid check, drive the vehicle until it is at normal operating
temperature (approximately 30 km [20 miles]). If your vehicle has been
operated for an extended period at high speeds, in city traffic during hot
weather or pulling a trailer, the vehicle should be turned off for about 30
minutes to allow fluid to cool before checking.
1. Drive the vehicle 30 km (20 miles) or until it reaches normal
operating temperature.
2. Park the vehicle on a level surface and engage the parking brake.
3. With the parking brake engaged and your foot on the brake pedal,
start the engine and move the gearshift lever through all of the gear
ranges. Allow sufficient time for each gear to engage.
4. Latch the gearshift lever in P (Park) and leave the engine running.
5. Remove the dipstick, wiping it clean with a clean, dry lint free rag. If
necessary, refer toIdentifying components in the engine
compartmentin this chapter for the location of the dipstick.
Maintenance and Specifications
223

Use only fluid that meets Mazda specifications. Refer toLubricant
Specificationsin this chapter.
DRIVELINE UNIVERSAL JOINT AND SLIP YOKE
Your vehicle may be equipped with universal joints that require
lubrication. If the original universal joints are replaced with universal
joints equipped with grease fittings, lubrication will also be necessary.
INFORMATION ABOUT UNIFORM TIRE QUALITY GRADING
New vehicles are fitted with tires
that have a rating on them called
Tire Quality Grades. The Quality
grades can be found where
applicable on the tire sidewall
between tread shoulder and
maximum section width. For
example:
²Treadwear 200 Traction AA Temperature A
These Tire Quality Grades are determined by standards that the United
States Department of Transportation has set.
Tire Quality Grades apply to new pneumatic tires for use on passenger
cars. They do not apply to deep tread, winter-type snow tires,
space-saver or temporary use spare tires, tires with nominal rim
diameters of 10 to 12 inches or limited production tires as defined in
Title 49 Code of Federal Regulations Part 575.104(c)(2).
U.S. Department of Transportation-Tire quality grades:The U.S.
Department of Transportation requires Mazda to give you the following
information about tire grades exactly as the government has written it.
Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controlled conditions on a specified
government test course. For example, a tire graded 150 would wear one
and one-half (1 1/2) times as well on the government course as a tire
graded 100. The relative performance of tires depends upon the actual
conditions of their use, however, and may depart significantly from the
norm due to variations in driving habits, service practices, and
differences in road characteristics and climate.
Maintenance and Specifications
227

Tire rotation
Because your vehicle's tires perform different jobs, they often wear
differently. To make sure your tires wear evenly and last longer, rotate
them as indicated in the service maintenance section. If you notice that
the tires wear unevenly, have them checked.
The following procedure applies to vehicles equipped with single rear
wheels, if your vehicle is equipped with dual rear wheels it is
recommended that only the front wheels be rotated (side to side).
²Four tire rotation
²Five tire rotation
Maintenance and Specifications
229

Fluid Mazda Part
NameApplication Capacity
Rear axle
lubricant
5Mazda SAE
80W-90
Premium Rear
Axle LubricantAll 2.4-2.5L (5.0-5.3
pints)
Windshield
washer fluidUltra-Clear
Windshield
Washer
ConcentrateAll 2.6L (2.75
quarts)
1Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. MERCONtand MERCONtV are not interchangeable. DO NOT
mix MERCONtand MERCONtV. Refer to the service maintenance
section to determine the correct service interval.
2Service refill capacity is determined by filling the transmission to the
bottom of the filler hole with the vehicle on a level surface.
3Indicates only approximate dry-fill capacity. Some applications may vary
based on cooler size and if equipped with an in-tank cooler. The amount
of transmission fluid and fluid level should be set by the indication on
the dipstick's normal operating range.
4Add the coolant type originally equipped in your vehicle. DO NOT MIX
different colors or types of coolant. DO NOT USE Extended Life Engine
Coolant (orange in color). Refer toAdding engine coolantin this
chapter.
5Traction-Lok axles use 2.2±2.4L (4.75±5.0 pints) of rear axle lubricant.
Add 118 ml (4 oz.) of Additive Friction Modifier meeting Mazda
specifications for complete refill of Traction-Lok axles.
Service refill capacities are determined by filling the rear axle 6 mm to
14 mm (1/4 inch to 9/16 inch) below the bottom of the filler hole.
Maintenance and Specifications
234

handle. MERCONtand MERCONtV are not interchangeable. DO NOT
mix MERCONtand MERCONtV. Refer to your service maintenance
section to determine the correct service interval.
3Do not mix different types or colors of engine coolant.
ENGINE SPECIFICATIONS
Engine 2.3L I4 engine 3.0L V6 engine 4.0L V6 engine
Cubic inches 138 182 245
Required fuel 87 octane 87 octane 87 octane
Firing order 1-3-4-2 1-4-2-5-3-6 1-4-2-5-3-6
Spark plug gap 1.04-1.19mm
(0.041-0.047
inch)1.07-1.17mm
(0.042-0.046
inch)1.3-1.4 mm
(0.052-0.056
inch)
Ignition system EDIS EDIS EDIS
Compression
ratio9.7:1 9.14:1 9.0:1
VEHICLE DIMENSIONS
Vehicle dimensions Regular Cab
mm (in)SuperCab mm
(in)
(1) Overall length 4 763 (187.5) 5 153 (202.9)
(2) Overall width 1 785 (70.3) 1 785 (70.3)
(3) Overall height 4x2/4x4 1 575 (62.0) /
1 655 (65.2)1 585 (62.4) /
1 684 (66.3)
(4) Wheelbase 2 831 (111.4) 3 192 (125.7)
(5) Track - Front 1 486 (58.5) 1 485 (58.5)
(5) Track - Rear 1 455 (57.3) 1 455 (57.3)
Maintenance and Specifications
236

instrument cluster lens ..........180
instrument panel ....................180
interior .....................................180
Mazda car care products .......181
mirrors .....................................179
plastic parts ............................179
washing ....................................176
waxing .....................................176
wheels ......................................177
windows ..................................181
wiper blades ............................179
Clutch
fluid ..........................................222
operation while driving ..........122
recommended shift speeds ....123
Compass, electronic ..............50±51
calibration .................................52
set zone adjustment .................51
Console ........................................57
Coolant
checking and adding ..............204
refill capacities ................207, 232
specifications ..................235±236
Cruise control
(see Speed control) ....................53
Customer
Assistance ..................165±166, 169
D
Daytime running lamps
(see Lamps) ................................38
Dipstick
automatic transmission
fluid ..........................................223
engine oil .................................196
Doors
lubricant specifications ..........235Driveline universal joint and
slip yoke ....................................227
Driving under special
conditions ..................124, 126±127
mud ..........................................127
sand .........................................127
snow and ice ...........................128
through water .................127±128
E
Emergencies, roadside
jump-starting ..........................158
Emission control system ..........218
Engine ........................................236
cleaning ...................................177
coolant .....................................204
idle speed control ...................202
lubrication
specifications ..................235±236
refill capacities ........................232
service points ..................192±194
starting after a collision .........140
Engine block heater .................114
Engine oil ..................................196
checking and adding ..............196
dipstick ....................................196
filter, specifications ................200
recommendations ...................200
refill capacities ........................232
specifications ..................235±236
Exhaust fumes ..........................114
F
Flexible Fuel Vehicle (FFV) ....208
Fluid capacities .........................232
Foglamps .....................................38
Four-Wheel Drive vehicles .......124
Index
241