Troubleshooting; Symptom Diagnostic Index; 1 Melting Of Main Or Other Fuses; 4 Hard Start/Long Crank/Erratic - Mazda Mazda6 Workshop Manual Supplement

SYMPTOM DIAGNOSTIC INDEX

No. TROUBLESHOOTING ITEM
1 Melting of main or other fuses
2 MIL illuminates
3 Will not crank
Hard start/long crank/erratic start/
4
erratic crank
5 Engine stalls After start/at idle
6 Cranks normally but will not start
7 Slow return to idle
8 Engine runs rough/rolling idle
9 Fast idle/runs on
10 Low idle/stalls during deceleration
Acceleration/
Engine stalls/quits
cruise
Acceleration/
Engine runs rough
cruise
Acceleration/
Misses
cruise
11
Acceleration/
Buck/jerk cruise/
deceleration
Hesitation/stumble Acceleration
Acceleration/
Surges
cruise
Acceleration/
12 Lack/loss of power
cruise
13 Knocking/pinging
14 Poor fuel economy
15 Emissions compliance
16 High oil consumption/leakage
Cooling system
17 Overheating
concerns

TROUBLESHOOTING

TROUBLESHOOTING
DESCRIPTION
—
MIL is illuminated incorrectly.
Starter does not work.
Starter cranks engine at normal speed but
engine requires excessive cranking time
before starting.
Engine stops unexpectedly at idle and/or
after start.
Starter cranks engine at normal speed but
engine will not run.
Engine takes more time than normal to
return to idle speed.
Engine speed fluctuates between specified
idle speed and lower speed and engine
shakes excessively.
Engine speed continues at fast idle after
warm-up.
Engine runs after engine switch is turned to
OFF.
Engine stops unexpectedly at beginning of
deceleration or recovery from deceleration.
Engine stops unexpectedly at beginning of
acceleration or during acceleration.
Engine stops unexpectedly while cruising.
Engine speed fluctuates during acceleration
or cruising.
Engine misses during acceleration or
cruising.
Vehicle bucks/jerks during acceleration,
cruising, or deceleration.
Momentary pause at beginning of
acceleration or during acceleration.
Momentary minor irregularity in engine
output.
Performance is poor under load (e.g. power
down when climbing hills).
Excessive shrilly knocking sound from
engine.
Fuel economy is unsatisfactory.
Fails emissions test.
Oil consumption is excessive.
Engine runs at higher than normal
temperature/overheats.
A6E408018881201
PAGE
(See F2–173 NO.1 MELTING
OF MAIN OR OTHER FUSES)
(See F2–174 NO.2 MIL
ILLUMINATES)
(See F2–174 NO.3 WILL NOT
CRANK)
(See F2–176 NO.4 HARD
START/LONG CRANK/
ERRATIC START/ERRATIC
CRANK)
(See F2–178 NO.5 ENGINE
STALLS-AFTER START/AT
IDLE)
(See F2–181 NO.6 CRANKS
NORMALLY BUT WILL NOT
START)
(See F2–184 NO.7 SLOW
RETURN TO IDLE)
(See F2–186 NO.8 ENGINE
RUNS ROUGH/ROLLING
IDLE)
(See F2–189 NO.9 FAST
IDLE/RUNS ON)
(See F2–190 NO.10 LOW
IDLE/STALLS DURING
DECELERATION)
(See F2–192 NO.11 ENGINE
STALLS/QUITS, ENGINE
RUNS ROUGH, MISSES,
BUCK/JERK, HESITATION/
STUMBLE, SURGES)
(See F2–195 NO.12 LACK/
LOSS OF POWER-
ACCELERATION/CRUISE)
(See F2–199 NO.13
KNOCKING/PINGING)
(See F2–202 NO.14 POOR
FUEL ECONOMY)
(See F2–205 NO.15
EMISSION COMPLIANCE)
(See F2–209 NO.16 HIGH OIL
CONSUMPTION/LEAKAGE)
(See F2–210 NO.17 COOLING
SYSTEM CONCERNS-
OVERHEATING)
F2–165
F2