For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Are dull thuds or knocks heard with every engine revolution? | -- | Go to Step 2 | System OK
2 | Measure the oil pump pressure. Is the oil pump pressure low? | -- | Go to Oil Pressure Diagnosis and Testing | Go to Step 3
3 | Inspect the crankshaft end play. Is the crankshaft end play greater than the given value? | 0.05-0.28 mm (0.002-0.011 in) | Go to Crankshaft Replacement | Go to Step 4
4 | Inspect the crankshaft journals. Are the crankshaft journals out-of-round? | -- | Go to Crankshaft Replacement | Go to Step 5
5 | Inspect the belt tension. Is there excessive belt tension? | -- | Go to Crankshaft Replacement | Go to Step 6
6 | Inspect the crankshaft pulley. Is the crankshaft pulley loose? | -- | Go to Crankshaft Replacement | System OK