Mazda 626 Station Wagon, Руководство по ремонту, Страница: 120 / 577

TROUBLESHOOTING
TROUBLESHOOTING
FOREWORD
• Before proceeding with the following troubleshooting.
(1) Refer to Section Gl to understand the basic troubleshooting procedure.
(2) Perform the DTC inspection.
(3) If the DTC is displayed, proceed with inspection steps for the code.
(4) When the engine can be started, perform “ENGINE TUNE-UP”.
TROUBLESHOOTING ITEM TABLE
• Confirm trouble symptom using the following diagnostic index, then go to appropriate troubleshooting chart.
No. TROUBLESHOOTING ITEM
DESCRIPTION PAGE
1 Melting of main or other fuses
See F1-105
NO.1 MELTING OF MAIN
OR OTHER FUSES
2 Will not crank Starter does not work.
See F1-106
NO.2 WILL NOT CRANK
3
Hard to start/long crank/erratic start/
erratic crank
Starter cranks engine at normal speed but
engine requires excessive cranking time
before starting.
See F1-107
NO.3 HARD START/LONG
CRANK/ERRATIC
START/ERRATIC CRANK
4 Engine stalls. After start/at idle
Engine stops unexpectedly at idle and/or
after start.
See F1-109
NO.4 ENGINE
STALLS—AFTER
START/AT IDLE
5 Cranks normally but will not start
Starter cranks engine at normal speed but
engine will not run.
See F1-113
NO.5 CRANKS NORMALLY
BUT WILL NOT START
6 Slow return to idle
Engine takes more time than normal to re­
turn to idle speed.
See F1-116
NO.6 SLOW RETURN TO
IDLE
7 Engine runs rough/rolling idle
Engine speed fluctuates between specified
idle speed and lower speed and engine
shakes excessively.
See F1-117
NO.7 ENGINE RUNS
ROUGH/ROLLING IDLE
8 Fast idle/runs on
Engine speed continues at fast idle after
warm-up.
Engine runs after ignition switch is turned
off.
See F1-120
NO.8 FAST IDLE/RUNS ON
9 Low idle/stalls during deceleration
Engine stops unexpectedly at beginning of
deceleration or recovery from deceleration.
See F1-120
NO.9 LOW IDLE/STALLS
DURING DECELERATION
10
Engine stalls/
quits.
Acceleration/cru ise
Engine stops unexpectedly at beginning of
acceleration or during acceleration. Engine
stops unexpectedly while cruising.
See F1-121
N0.10 ENGINE
STALLS/QUITS, ENGINE
RUNS ROUGH, MISSES,
BUCK/JERK,
HESITATION/STUMBLE,
SURGES
Engine runs
rough.
Acceleration/cruise
Engine speed fluctuates during accelera­
tion or cruising.
Misses Acceleration/cruise
Engine misses during acceleration or cruis­
ing.
Buck/jerk
Acceleration/cru ise/
deceleration
Vehicle bucks/jerks during acceleration,
cruising, or deceleration.
Hesitation/
stumble
Acceleration
Momentary pause at beginning of accelera­
tion or during acceleration
Surges Acceleration/cruise
Momentary minor irregularity in engine out­
put
11
Lack/loss of
power
Acceleration/cruise
Performance is poor under load
(e.g., power down when climbing hills).
See F1-125
NO.11 LACK/LOSS OF
POWER—ACCELERATION/
CRUISE
F1-99