Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2007 Chevrolet Optra LS, AutomaticFACTORY OEM SERVICE PROCEDURE

Installation Procedure

Fig 1: View Of Air Cleaner Housing Bolts

Courtesy of GENERAL MOTORS CORP.

Install the air cleaner housing.
Tighten the clamps.

NOTE: Refer to Fastener Notice .

Install the air cleaner housing bolts.
Tighten: Tighten the air cleaner housing bolts to 10 N.m (89 lb in) .
Install the engine cover.
Connect the negative battery cable.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.