Engine Noise Diagnosis. Chevrolet Joy 2008

For 1990-2009 cars

Checks | Actions
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Valve Noise

- Inadequate valve clearance

Adjust the valve clearance.

- Abrasion of the valve stem or guide

Replace the valve stem or the guide.

- Weak valve spring

Replace the spring.

Piston, Ring, Cylinder Noise

- Abrasion of the piston, the ring, or the cylinder

Bore the cylinder or replace the piston, the ring, or the cylinder.

Connection Rod Noise

- Abrasion of the connection rod bearing

Replace the bearing.

- Loosened the connecting rod nut

Tighten to the specified torque.

Crankshaft Noise

- Abrasion of the crankshaft bearing

Replace the bearing.

- Abrasion of the crankshaft journal

Grind or replace the crankshaft journal.

- Loosened bearing cap bolt

Tighten to the specified torque.

- Excessive clearance of the crankshaft thrust bearing

Adjust or replace.

- Low oil pressure

Refer to High or Low Oil Pressure .