Automatic Temperature Control: Testing

1971 Chevrolet Nova Not Available, 5.7L Eng, Not Available TransSECTION Testing

Testing requires use of ATC Tester J-23678 and related equipment. For test set connections and testing procedure, and Programmer component replacement, refer to "General Motors Automatic Temperature Control Testing" in this section  .

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

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

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.