For 1990-2009 cars only
- Remove the 5 bolts and separate the oil pump halves.
- Remove the retainer (1), the spring (2) and the relief valve (3).
- Apply light air pressure to the oil jet. Inspect the oil jet for damage or clogging.
- Remove and inspect the relief valve. Coat the relief valve with oil and check that it falls smoothly into the valve hole by its own weight.
Important: Do not remove the oil pump sprocket or sprocket bolt.
Important: If the oil pump is found to be damaged or worn excessively replace the oil pump as an assembly.
Caution: Refer to Safety Glasses Caution in the Preface section.
