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Home >> Pontiac >> 2006 >> Vibe Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission - Mu4 - Service, Removal & Installation, Troubleshooting & Diagnostics) >> Diagnostic Information and Procedures >> Road Test Procedure >> Coastdown Downshift Test

Coastdown Downshift Test

WARNING: This page is about a different variant/trim than selected.
  1. Verify the manual selector is in the Drive (D) position and the Overdrive switch is depressed.
  2. Depress the accelerator pedal until the transaxle is in 4th gear.
  3. Release the accelerator pedal.
  4. Lightly apply the brake pedal.
  5. Observe the TCC release.
  6. Observe the vehicle speeds at points of downshifts.
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