For 1990-2009 cars

1. Inspect the following for the excessive wear or damage:

• | The oil pump outer gear

• | The oil pump inner gear

• | The oil pump cover

• | The oil pump body

2. Measure the radial clearance between the oil pump outer gear and the oil pump body using a feeler gage.

Replace the oil pump outer gear and/or oil pump if the clearance exceeds 0.30 mm (0.0118 in).

3. Measure the side clearance between the oil pump gears and a straightedge using a feeler gage.

Replace the gears if the clearance exceeds 0.15 mm (0.0059 in).

4. Measure the tip clearance between the oil pump gear tips using a feeler gage.

Replace the gears if the clearance exceeds 0.35 mm (0.0138 in).