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Home >> Chevrolet >> 2018 >> Spark LT, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission - JATCO CVT) >> Diagnostic Information and Procedures >> Line Pressure Check >> At Idle Engine Speed

At Idle Engine Speed

WARNING: This page is about a different variant/trim than selected.
  1. Check the engine oil level. Refill if necessary.
  2. With the engine warmed up, drive the vehicle.
  3. NOTE:

    When ambient temperature is 20°C (68°F), it takes about 10 minutes for the CVT fluid to warm up to 50 - 80°C (122 - 176°F).

  4. Check the CVT fluid level and condition. Refill if necessary. Refer to Transmission Fluid Level and Condition Check .
  5. Block the front and rear wheels and apply the parking brake fully.
  6. Start the engine and set A/C OFF.
  7. Set the scan tool.
  8. Select "Line Pressure" in data menu.
  9. NOTE:

    Keep the brake pedal pressed all the way down during the measurement.

  10. Measure the line pressure at idle speed.
Line Pressure Test Result

Selector Lever Position Engine Speed Line Pressure
P and N Range At Idle 275 - 870 kPa (39.9 - 126.2 psi): 1.0 Engine
400 - 1020 kPa (58.0 - 147.9 psi): 1.4 Engine
R and D Range At Idle