Repair and Diagnosis: Fundamentals and Basics

2008 Chevrolet HHR%20L4-2.4LSECTION Fundamentals and Basics


Training


Fleets

GM Fleet customers with GM Warranty In-Shop agreements are able to participate in service technical training through Common Training/GM Service Technical College (STC).


Non-GM Dealer Technicians

Technicians training for non-GM dealers is available through ACDelco. This training is for ACDelco customers employed in the automotive or truck service industry.


ACDelco courses are available at all approved GM Training Centers. Contract your dealer directly for more information.

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Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

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

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