No Diagnostic Trouble Codes (DTCs) Present Symptom Chart Index
Driveability
| System/Symptom | Chart Number | |
|---|---|---|
| Starting Concerns | Hard Start/Long Crank/Erratic Start/Erratic Crank | CHART NUMBER: 2 |
| No crank | CHART NUMBER: 23 | |
| No start (engine cranks) | CHART NUMBER: 3 | |
| Unique Idle Concerns | Slow return to idle | CHART NUMBER: 4 |
| Rolling idle | CHART NUMBER: 1 | |
| Fast idle | CHART NUMBER: 5 | |
| Low/Slow idle | CHART NUMBER: 6 | |
Driveability - Performance While Driving Concerns
| System/Symptom | Chart Number | |
|---|---|---|
| Stalls/Quits | Idle/Acceleration/Cruise | CHART NUMBER: 1 |
| Deceleration | CHART NUMBER: 6 | |
| Stall after start | CHART NUMBER: 1 | |
| Runs Rough | CHART NUMBER: 1 | |
| Misses | CHART NUMBER: 1 | |
| Buck/Jerk | CHART NUMBER: 1 | |
| Hesitation/Stumble | CHART NUMBER: 1 | |
| Surge | CHART NUMBER: 1 | |
| Backfires | CHART NUMBER: 7 | |
| Lack/Loss of Power | CHART NUMBER: 8 | |
| Spark Knock | CHART NUMBER: 9 | |
Note: OASIS identifiers (the x means any number (1-9) can be used) xxx4xx equals during idle, xxx5xx equals during acceleration, xxx6xx equals during cruise, xxx7xx equals during deceleration.
Additional Driveability Concerns
| System/Symptom | Chart Number | |
|---|---|---|
| Diesels/Runs On | CHART NUMBER: 5 | |
| Poor Fuel Economy | CHART NUMBER: 10 | |
| Emissions Compliance | CHART NUMBER: 11 | |
Electrical
| System/Symptom | Chart Number | |
|---|---|---|
| Warning Indicators | Malfunction indicator lamp (MIL) | CHART NUMBER: 12 |
| Transmission control indicator lamp (TCIL) | CHART NUMBER: 12 | |
| Power take off (PTO) | CHART NUMBER: 12 | |
| Temperature warning indicator or gauge (for vehicles equipped with a cylinder head temperature (CHT) sensor only) | CHART NUMBER: 12 | |
| Check fuel cap indicator | CHART NUMBER: 12 | |
| Powertrain malfunction indicator (wrench) | CHART NUMBER: 12 | |
| Climate Control | Lack of A/C cooling, A/C not functioning | CHART NUMBER: 21 |
| A/C always on or A/C compressor runs continuously | CHART NUMBER: 21 | |
| Instrumentation | Tachometer inoperative | CHART NUMBER: 14 |
| Speedometer/odometer inoperative | CHART NUMBER: 14 | |
| Boost gauge indicates higher than normal boost | CHART NUMBER: 14 | |
| Fuel gauge inoperative | CHART NUMBER: 14 | |
Engine
| System/Symptom | Chart Number | |
|---|---|---|
| Oil System Concerns | High oil consumption | CHART NUMBER: 15 |
| Leaks | CHART NUMBER: 15 | |
| Cooling System Concerns | Electric cooling fan(s) does not operate (low, medium, high or variable speed) | CHART NUMBER: 16 |
| Cooling fan clutch does not operate | CHART NUMBER: 16 | |
| Electric cooling fan(s) always runs | CHART NUMBER: 17 | |
| Exhaust System Concerns | Visible smoke | CHART NUMBER: 18 |
| Odor (sulfur or rotten egg smell) | CHART NUMBER: 22 | |
| Fuel System Concerns | Odor, engine compartment | CHART NUMBER: 19 |
| Engine Noise (under hood) | CHART NUMBER: 20 | |
Driveline
| System/Symptom | Chart Number | |
|---|---|---|
| Automatic Transmission (A/T) Shift Concerns | Upshift | CHART NUMBER: 13 |
| Downshift | CHART NUMBER: 13 | |
| Engagement | CHART NUMBER: 13 | |
Power Take Off (PTO)
| System/Symptom | Chart Number | |
|---|---|---|
| PTO Concerns | Not working correctly | CHART NUMBER: 12 |