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Chevrolet
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2002
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Blazer 4D Utility, 4WD, Part Time
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Automatic Transmission Diagnosis - 4L60-E
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Performance Tests
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Road Test
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Manual First
Manual First
With the vehicle stopped, move the gearshift lever to 1st.
Accelerate the vehicle to 20 MPH.
Verify no upshifts occur, the TCC does not apply and there is no noticeable slip, noise, or vibration.