Diagnostic Index
DIAGNOSTIC INDEX
| CHART NO. | SYMPTOM TROUBLESHOOTING | DESCRIPTION | PAGE |
|---|---|---|---|
| 1 | STARTING CONCERNS | No crank | STARTING CONCERNS . |
| 2 | STARTING CONCERNS | Hard start/long crank Erratic start/erratic crank |
HARD START/ LONG CRANK / ERRATIC START / ERRATIC CRANK . |
| 3 | STARTING CONCERNS | No start/Normal crank | CRANKS NORMAL BUT WILL NOT START . |
| 4 | UNIQUE IDLE CONCERNS | Slow return to idle | UNIQUE IDLE CONCERN . |
| 5 | UNIQUE IDLE CONCERNS | Fast idle Diesels/runs on |
FAST IDLE . |
| 6 | UNIQUE IDLE CONCERNS | Low/Slow idle | LOW IDLE/STALLS DURING DECELERATION . |
| 6 | STALLS/QUITS | Deceleration | LOW IDLE/STALLS DURING DECELERATION . |
| 7 | STARTING CONCERNS | Stalls after start | ENGINE POOR DRIVABILITY . |
| 7 | STALLS/QUITS | Idle Acceleration Cruise |
ENGINE POOR DRIVABILITY . |
| 7 | RUNS ROUGH | Idle Acceleration Cruise |
ENGINE POOR DRIVABILITY . |
| 7 | MISSES | Idle Acceleration Cruise |
ENGINE POOR DRIVABILITY . |
| 7 | BUCK/JERK | Acceleration Cruise Deceleration |
ENGINE POOR DRIVABILITY . |
| 7 | HESITATION/STUMBLE | Acceleration | ENGINE POOR DRIVABILITY . |
| 7 | SURGE | Acceleration Cruise |
ENGINE POOR DRIVABILITY . |
| 7 | UNIQUE IDLE CONCERNS | Rolling idle | ENGINE POOR DRIVABILITY . |
| 8 | BACKFIRES | Idle Acceleration Deceleration |
BACKFIRES . |
| 9 | LACK/LOSS OF POWER | Acceleration Cruise |
LACK / LOSS OF POWER . |
| 10 | SPARK KNOCK | Acceleration Cruise |
KNOCKING / PINGING . |
| 11 | POOR FUEL ECONOMY | Checks for conditions causing poor fuel economy | POOR FUEL ECONOMY . |
| 12 | EMISSIONS COMPLIANCE | Diagnostics for a vehicle that has failed an emission check | EMISSION COMPLIANCE . |
| 13 | WARNING INDICATORS | MIL TCIL |
MIL/TCIL NEVER ON AND MIL/TCIL ALWAYS ON . |
| 14 | AUTOMATIC TRANSAXLE SHIFT CONCERNS | Upshift Downshift Engagement |
DIAGNOSIS BY SYMPTOM . |
| 15 | INSTRUMENTATION | Tachometer inoperative Speedometer inoperative Fuel gauge inoperative |
SYMPTOM TROUBLESHOOTING CHART -- INSTRUMENT CLUSTER . |
| 16 | EXHAUST SYSTEM CONCERNS | Smoke | EXHAUST SYSTEM CONCERNS . |
| 17 | FUEL SYSTEM CONCERNS | Odor, engine compartment | FUEL ODOR IN ENGINE COMPARTMENT . |
| 18 | ENGINE NOISE | Under hood | ENGINE NOISE . |
| 19 | EXHAUST SYSTEM CONCERNS | Odor (sulphur/"rotten egg" smell) | EXHAUST SULFUR SMELL . |
| 20 | DTC P1000 RECEIVED DURING EMISSION TEST | ALL SUPPORTED ON BOARD SYSTEM READINESS TESTS NOT COMPLETED . | |
| 21 | FUEL SYSTEM CONCERNS | Fuel pump always runs | FUEL PUMP ALWAYS ON . |