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Home >> Chevrolet >> 2005 >> Aveo Base, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different car >> Section 46 (Engine Mechanical - 1.6L (L91)) >> Diagnostic Information and Procedures >> Piston Noises

Piston Noises

WARNING: This page is about a different car, the 2004 Suzuki Swift + and 2004 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
Piston Noises

Step Action Yes No
1 Listen for the following noises:
  • A sharp double knock when the engine is idling
  • A light ticking with no load on the engine
  • A slapping noise when the engine is cold?

Are any of these noises heard?		 Go to Step 2  System OK
2 Inspect the piston pin and the bushing.
Is the piston pin or the bushing worn or loose?		 Go to Piston, Connecting Rod, and Bearing Replacement  Go to Step 3 
3 Inspect the piston.
Is the piston broken or cracked?		 Go to Piston, Connecting Rod, and Bearing Replacement  Go to Step 4 
4 Inspect the connecting rods.
Is there a misaligned connecting rod?		 Go to Piston, Connecting Rod, and Bearing Replacement  Go to Step 5 
5 Inspect the piston position.
Is the piston 180 degrees out of position?		 Go to Piston, Connecting Rod, and Bearing Replacement  System OK
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