Astro Van 2WD V6-4.3L VIN W (2001)
9. Tighten the exhaust manifold nuts in proper sequence (1-6).
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Tighten the catalytic converter assembly-to-exhaust manifold nuts to 53 Nm (39 ft. lbs.).
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Tighten the catalytic converter assembly-to-muffler assembly nuts to 40 Nm (30 ft. lbs.).
10. Install the three oxygen sensor electrical connections and clips.
11. Remove the support from the catalytic converter assembly.
12. Lower the vehicle.
