| Complaint ------------->
Probable Cause |
Will
Not
Start |
Hard
To
Start |
Starts
And
Stalls |
Dies
On
Deceleration |
Runs
Rough |
Lack
Of
Power |
Black
Smoke |
White
Smoke |
| Low Cranking Speed |
X |
X |
|
|
|
|
|
|
Incorrect Starting
Procedure |
X |
X |
|
|
|
|
|
|
| Some or All Glow Plugs Bad |
X |
X |
|
|
X |
|
|
X |
| No Fuel to Cylinders |
X |
|
|
|
|
|
|
|
Plugged or Restricted
Return |
X |
X |
X |
|
X |
X |
|
X |
| Insufficient Fuel Supply |
X |
X |
X |
|
X |
|
|
X |
| No Voltage to Shutoff Solenoid |
X |
|
|
|
|
|
|
|
| Shutoff Solenoid Bad |
X |
X |
X |
|
|
|
|
|
| Poor Fuel Quality |
X |
X |
X |
|
X |
X |
|
|
| Some or All Injectors Bad |
X |
X |
|
|
X |
|
X |
X |
Incorrect Pump to
Engine Timing |
X |
X |
|
|
|
X |
|
X |
| Low Compression |
X |
X |
|
|
|
|
|
X |
| Bad Injection Pump |
X |
X |
X |
|
X |
|
|
X |
| Idle Speed Too Low |
|
|
X |
X |
X |
|
|
|
| Fast Idle Solenoid Bad |
|
|
X |
|
|
|
|
|
| Air In Fuel |
|
|
X |
|
X |
|
|
|
| Governor Binding |
|
|
|
X |
|
|
|
|
Metering Valve Sticking
In Injection Pump |
|
|
|
X |
|
|
|
|
| Fuel Leaks at Injection Lines |
|
|
|
|
X |
|
|
|
| Air Inlet Restricted |
|
|
|
|
|
X |
X |
|
Transmission Shift Points
Incorrect |
|
|
|
|
|
X |
|
|
| Brake Drag |
|
|
|
|
|
X |
|
|
| Incorrect Engine Timing |
X |
X |
|
|
|
|
X |
X |
| Internal Engine Problems |
X |
X |
|
|
|
X |
X |
|
