Automatic Transmission/Transaxle: Service Precautions

2012 Chevrolet Sonic L4-1.8LSECTION Service Precautions



Work Stall Test Warning

Warning

One or more of the following guidelines may apply when performing specific required tests in the work stall:

* When a test requires spinning the drive wheels with the vehicle jacked up, adhere to the following precautions:

- Do not exceed 56 km/h (35 mph) when spinning one drive wheel with the other drive wheel stopped. This limit is necessary because the speedometer indicates only one-half the actual vehicle speed under these conditions. Personal injury may result from excessive wheel spinning.

- If all of the drive wheels are spinning at the same speed, do not exceed 112 km/h (70 mph). Personal injury may result from excessive wheel spinning.

- All persons should stay clear of the rotating components and the balance weight areas in order to avoid possible personal injury.

- When running an engine in the repair stall for an extended period of time, use care not to overheat the engine and the transmission.

* When a test requires jacking up the vehicle and running with the wheels and brake rotors removed, adhere to the following precautions:

- Support the suspension at normal ride height.

- Do not apply the brake with the brake rotors removed.

- Do not place the transmission in PARK with the drive axles spinning.

- Turn Off the ignition in order to stop the powertrain components from spinning.

* When running an engine in the work stall, use the exhaust removal system to prevent breathing dangerous gases.

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.