Diagnostic Aids

2006 Chevrolet Suburban C2500, 6.0 USECTION Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  • During diagnosis, park the vehicle on a level surface.
  • Inspect the vehicle for proper alignment. The car should not pull in either direction while driving straight on a level surface.
  • Find out from the customer the conditions under which the DTC was set. This information will help to duplicate the failure.
  • The snapshot function on the scan tool can help find an intermittent DTC.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.