gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Compression Check > < Ignition System - Runs Rough MIL/ON DTC P0300/P0306|Page 7840
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2. Install the spark plugs to the cylinder head.

Tighten the spark plugs to 18 N.m (13 lb ft).

3. Install the ignition coils. Refer to Ignition Coil Replacement  (See: Ignition System/Ignition Coil/Service and Repair) .

Compression Check > < Ignition System - Runs Rough MIL/ON DTC P0300/P0306|Page 7840