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GMC Truck
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2009
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Envoy 2WD L6-4.2L
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Valve Clearance
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Specifications
Valve Clearance: Specifications
VALVE CLEARANCE
Valve Stem-to-Guide Clearance
Exhaust
0.0375-0.0775 mm (0.0015-0.0030 in)
Intake
0.030-0.065 mm (0.0011-0.0025 in)