Engine Position System Performance (Bank 1)

What This Means

The engine position system on bank 1 is not performing within expected parameters. The mechanical timing between the crankshaft and camshaft is not properly synchronized.

Common Symptoms

• Engine rattling noise
• Reduced performance
• Rough idle
• Check engine light on

Common Causes

• Stretched timing chain
• Worn timing chain tensioner
• Failed timing chain guide
• Camshaft phaser malfunction
• Incorrect engine assembly

Estimated Repair Cost