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.
Air Valve (Metro)
Remove throttle body assembly from intake manifold. Separate upper and lower bodies. Remove air valve from lower body and place sensing portion of air valve in water. See Fig 1 . Heat water to 140°F (60°C). Ensure valve fully closes. Replace valve if it does not perform as described. Reassemble both bodies and tighten screws to 31 INCH lbs. (3.5 N.m).
Use the Manual With the Right Hardware
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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.