C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
9. Tighten the air cleaner outlet duct clamps at the following locations:
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Throttle body
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MAF/IAT sensor
Tighten the air cleaner outlet duct clamp screws to 7 Nm (62 inch lbs.).
10. Fill the cooling system.