GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Optra 🢒 Engine 🢒 Engine Mechanical - 2.0L (Diesel) 🢒 Engine Noise on Start-Up, but Only Lasting a Few Seconds

Condition

Action

Incorrect oil viscosity

  1. Drain the oil.
  2. Install the correct viscosity oil.

Excessive piston-to-cylinder bore clearance

  1. Inspect the piston and piston skirt, connecting rod, and cylinder bore.
  2. Repair or replace all damaged components.