Special tool
 | Manual vacuum/pressure pump 416-D001 (23-036A) |
Inspection and verification
1. Check the customer's complaint.
2. Perform a visual check for obvious signs of mechanical or electrical damage.
Visual Inspection Table
|
Mechanical factors |
Electrical Factors |
|
- Fuel level - Fuel filter - Fuel tank – Fuel line (And) – Connection (I) fuel lines – Filler cap – Fuel tank filler line - Pad (And) – Seal (I) |
– Inertial fuel cut-off switch (IFS) – Electrical plug (s) – wiring harness |
3. If an obvious cause of the problem you identified or described by the client is found, eliminate it before proceeding to further actions (if possible).
4. If the cause is not visually obvious, check the symptom and run system diagnostics using WDS (all but diesel vehicles).
5. If the cause is not visually obvious, check the symptom and refer to the Symptom Chart - Diesel Vehicles.
Symptom table
|
State |
Possible Causes |
Action |
|
•Engine cranks but does not start |
• Fuel supply and controls |
• For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 75 hp diesel engine or 90 hp • For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 115 hp diesel engine |
|
• Penetration of air into fuel lines. |
• Go to PINPOINT TEST A - 75 HP Diesel Vehicles. or 90 hp • Go to PINPOINT TEST B - 115 HP Diesel Vehicles. |
|
|
•Bad start |
• Fuel supply and controls |
• For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 75 hp diesel engine or 90 hp See Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G for more information. - Vehicles with 115 hp diesel engine |
|
• Penetration of air into fuel lines. |
• Go to PINPOINT TEST A - 75 HP Diesel Vehicles. or 90 hp • Go to PINPOINT TEST B - 115 HP Diesel Vehicles. |
|
|
•Engine starts but stops immediately |
• Fuel supply and controls |
• For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 75 hp diesel engine or 90 hp • For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 115 hp diesel engine |
|
• Penetration of air into fuel lines. |
• Go to PINPOINT TEST A - 75 HP Diesel Vehicles. or 90 hp • Go to PINPOINT TEST B - 115 HP Diesel Vehicles. |
|
|
•Poor idling performance |
• Fuel supply and controls |
• For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 75 hp diesel engine or 90 hp • For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 115 hp diesel engine |
|
• Penetration of air into fuel lines. |
• Go to PINPOINT TEST A - 75 HP Diesel Vehicles. or 90 hp • Go to PINPOINT TEST B - 115 HP Diesel Vehicles. |
|
|
•Loss of engine power |
• Fuel supply and controls |
• For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 75 hp diesel engine or 90 hp • For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 115 hp diesel engine |
|
• Penetration of air into fuel lines. |
• Go to PINPOINT TEST A - 75 HP Diesel Vehicles. or 90 hp • Go to PINPOINT TEST B - 115 HP Diesel Vehicles. |
|
|
•Misfire |
• Fuel supply and controls |
• For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 75 hp diesel engine or 90 hp • For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 115 hp diesel engine |
|
• Penetration of air into fuel lines. |
• Go to PINPOINT TEST A - 75 HP Diesel Vehicles. or 90 hp • Go to PINPOINT TEST B - 115 HP Diesel Vehicles. |
|
|
•Increased fuel consumption |
• Fuel supply and controls |
• For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 75 hp diesel engine or 90 hp • For more information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. - Vehicles with 115 hp diesel engine |
|
• Penetration of air into fuel lines. |
• Go to PINPOINT TEST A - 75 HP Diesel Vehicles. or 90 hp • Go to PINPOINT TEST B - 115 HP Diesel Vehicles. |
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