engine
Timing Chain Guide Torque Specs
for 2015 GMC Yukon 5.3L V8 · 4WD
8 fasteners
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Camshaft Sprocket Bolt
Critical69 lb-ft · 93 Nm
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Crankshaft Pulley Bolt
Critical163 lb-ft · 220 Nm
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Timing Chain Guide Bolts
CriticalReplace if worn
9 lb-ft · 12 Nm
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Timing Cover Bolts
Critical13 lb-ft · 17 Nm
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Timing Cover Bolts - 8mm
CriticalTighten in sequence
18 lb-ft · 25 Nm
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Valve Cover Bolts
Tighten in sequence
7 lb-ft · 10 Nm
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