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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission Diagnosis - 4L60-E >> Performance Tests >> Road Test >> Part Throttle Detent Downshift

Part Throttle Detent Downshift

  1. Place the gearshift lever in the Overdrive position.
  2. Accelerate the vehicle to 40-55 MPH in 4th gear.
  3. Quickly increase throttle angle to greater than 50 percent.
  4. Verify the TCC releases and transmission downshifts immediately to 3rd gear.
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