gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Camshaft, Lifters and Push Rods > < Wheel Seal|Front|Page 874
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Compression Check: Specifications

2068 kPa (300 psi).  
Perform compression test with engine at normal operating temperature, glow plugs removed and throttle wide open.

Camshaft, Lifters and Push Rods > < Wheel Seal|Front|Page 874