Step | Action | Values | Yes | No |
|---|---|---|---|---|
1 | Is the engine oil within specification viscosity? | -- | Go to Step 2 | Go to Step 13 |
2 | Do you find dilution of the engine oil? | -- | Go to Step 13 | Go to Step 3 |
3 | Is the fuel within the recommendation specification? | 30-44 API Gravity | Go to Step 4 | Go to Step 14 |
4 | Is the fuel contaminated with gasoline? | -- | Go to Step 14 | Go to Step 5 |
5 | Do you find any breakage on the fuel pump, injection pipe, etc.? | -- | Go to Step 15 | Go to Step 6 |
6 |
Important: The gauze filter is fixed in the suction eye bolt in the supply pump. Are the fuel filters in normal condition? | -- | Go to Step 7 | Go to Step 16 |
7 | Inspect the air filter for a restriction. Did you find a condition? | -- | Go to Step 15 | Go to Step 8 |
8 | Bleed the air from the fuel line. Did you complete the action? | -- | Go to Step 9 | -- |
9 | Did the malfunction indicator lamp (MIL) illuminate? | -- | Go to indicated DTC | Go to Step 10 |
10 | Inspect the engine scan tool data list at idle. Are all parameters normal? | -- | Go to Step 11 | Go to Step 17 |
11 | Inspect the injection balance each cylinder. Do all cylinders show normal injector balance rates? | -- | System OK | Go to Step 12 |
12 | Inspect the activity of the flow damper and/or fuel pipe condition. Do you find any problem on the above components? | -- | Go to Step 15 | Go to Step 18 |
13 | Replace the engine oil and/or repair the cause of dilution. Did you complete the action? | -- | Go to Step 19 | -- |
14 | Replace the fuel the recommended specification. Did you complete the action? | 30-44 API Gravity | Go to Step 19 | -- |
15 | Repair/replace the problem part. Did you complete the action? | -- | Go to Step 19 | -- |
16 | Clean/replace the fuel filter. Did you complete the action? | -- |
Go to Step 19 | -- |
17 | Repair the problem related to the abnormal scan tool parameter. Did you complete the action? | -- |
Go to Step 19 | -- |
18 | Replace the supply pump assembly. Did you complete the replacement? | -- |
Go to Step 19 | -- |
19 | Does the engine operate normally? | -- | System OK |
Go to Step 2 |
