gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

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Compression Check|Specifications|Page 7131 > < Ignition System - New Spark Plugs & Gapping Info.|Page 7127

C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)

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Compression Check: Specifications

The minimum compression in any one cylinder should not be less than 70 percent of the highest cylinder. No cylinder should read less than 690 kPa(100
psi).

Compression Check|Specifications|Page 7131 > < Ignition System - New Spark Plugs & Gapping Info.|Page 7127