Mazda 6 Service Manual: Troubleshooting
- Engine symptom troubleshooting
- Quick diagnostic chart
- No.1 melting of main or other fuses
- No.2 mil illuminates
- No.3 will not crank
- No.4 hard to start/long crank/erratic start/erratic crank
- No.5 engine stalls-after start/at idle
- No.6 cranks normally but will not start
- No.7 slow return to idle
- No.8 engine runs rough/rolling idle
- No.9 fast idle/runs on
- No.10 low idle/stalls during deceleration
- No.11 engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges
- No.12 lack/loss of power-acceleration/cruise
- No.13 knocking/pinging-acceleration/cruise
- No.14 poor fuel economy
- No.15 emission compliance
- No.16 high oil consumption/leakage
- No.17 cooling system concerns-overheating
- No.18 cooling system concerns-runs cold
- No.19 exhaust smoke
- No.20 fuel odor (in engine compartment)
- No.21 engine noise
- No.22 vibration concerns (engine)
- No.23 a/c does not work sufficiently
- No.24 a/c is always on or a/c compressor runs continuously
- No.25 a/c is not cut off under wide open throttle conditions
- No.26 exhaust sulphur smell
- No.27 constant voltage
- No.28 spark plug condition
- Intermittent concern troubleshooting
- Engine control system operation inspection
Dtc p2504
Diagnostic procedure
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Engine symptom troubleshooting
Confirm trouble symptom using the following diagnostic index, then go to
appropriate troubleshooting chart.
Diagnostic Index
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Other materials:
Mazda 6 Service Manual: Transaxle fluid temperature (tft) sensor removal/installation
Warning
When the transaxle and ATF are hot, they can badly burn. Turn off
the engine and wait until they are cool before replacing the ATF.
1. Remove the oil pan. (See CONTROL VALVE BODY REMOVAL.)
2. Disconnect the TFT sensor connector.
3. Remove the TFT sensor.
4. Install a TFT senso ...
Mazda 6 Service Manual: Combine sensor removal/installation
Caution
Be careful and do not allow the combine sensor to fall. If by
chance it is subjected to strong impact, replace it.
1. Remove the center console.
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.
4. After installation, perform the comb ...