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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 45 (Engine Control System - Trouble Shooting - No Codes) >> Symptom Diagnosis >> Lack Of Power, Sluggishness Or Sponginess >> Engine Mechanical Check

Engine Mechanical Check

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check for any of the following engine mechanical problems:
    • A low compression
    • An incorrect valve timing
    • An incorrect or worn camshaft
  2. See appropriate article in ENGINES.
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