Mazda CX-7 2007 Workshop Manual page 308

SYMPTOM TROUBLESHOOTING [L3 WITH TC]
QUICK DIAGNOSTIC CHART[L3 WITH TC]
Troubleshooting item
Melting of main or other fuses
1
2 MIL illuminates
3
Will not crank
Hard start/long crank/erratic start/erratic crank
4
5
Engine stalls
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
Engine stalls/quits
Engine runs rough
Misses
11
Buck/jerk
Hesitation/stumble
Surges
12
Lack/loss of power
13 Knocking/pinging
14 Poor fuel economy
15
Emission compliance
16 High oil consumption/leakage
17
Cooling system concerns
18 Cooling system concerns
19
Exhaust smoke
20
Fuel odor (in engine compartment)
21 Engine noise
22 Vibration concerns (engine)
23
A/C does not work sufficiency
A/C always on or A/C compressor
24
runs continuously.
25
A/C does not cut off under wide open throttle
26 Exhaust sulphur smell
27
Fuel refill concerns
28 Fuel filling shut off issues
29
Spark plug condition
01-03–8
Possible factor
After start/at idle
Acceleration/cruise
Acceleration/cruise
Acceleration/cruise
Acceleration/cruise/
deceleration
Acceleration/cruise
Acceleration/cruise
Acceleration/cruise
Acceleration/cruise
Overheating
Runs cold
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