Manual Range Selection
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The shift solenoids control the upshifts in the manual ranges.
Perform the following tests, using 10-15 percent throttle angle.
REVERSE
- With the vehicle stopped, move the shift selector to REVERSE.
- Slowly accelerate the vehicle.
- Verify that there is no noticeable slip, noise or vibration.
Manual FIRST
- With the vehicle stopped, move the shift selector to FIRST.
- Accelerate the vehicle to maximum speed.
- Verify the following conditions:
- No upshifts occur.
- The TCC does not apply.
- There is no noticeable slip, noise, or vibration.
Manual SECOND
- With the vehicle stopped, move the shift selector to SECOND.
- Accelerate the vehicle to maximum speed.
- Verify the following conditions:
- The 1-2 shift occurs.
- The 2-3 shift does not occur.
- There is no noticeable slip, noise, or vibration.
Manual THIRD
- With the vehicle stopped, move the shift selector to THIRD.
- Accelerate the vehicle to maximum speed.
- Verify the following conditions:
- The 1-2 shift occurs.
- The 2-3 shift occurs.
- There is no noticeable slip, noise, or vibration.