C Yukon 2WD V8-5.7L VIN R (1999)
21. For the 7.4L, install the oil cooler lines to the oil cooler fittings.
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Tighten the oil cooler fittings to 24 Nm (18 ft. lbs.).
22. Install the oil cooler lines to the clip.
23. Install the bolt to the clip.
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Tighten the bolt to 6 Nm (53 inch lbs.).
24. For diesel engines, install the oil cooler lines to the oil cooler fittings.
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Tighten the oil cooler fittings to 24 Nm (118 ft. lbs.).
25. Install the oil cooler lines to the clip.
26. Install the bolt to the clip.
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Tighten the bolt to 6 Nm (53 inch lbs.).
27. Tighten the bolt and the clamp to the bracket.
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Tighten the bolt to 9 Nm (80 inch lbs.).
28. Run the engine. Inspect the cooling system for leaks.