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Bob, Auto Tech
Category: Chevy
Satisfied Customers: 4087
Experience:  Plus 40 years GM, over 30 certified with Chevrolet, ASE certified Master Tech. (Expired, Retired)
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how to change trans fluid on a chevy colorado

Customer Question

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Submitted: 7 years ago.
Category: Chevy
Expert:  Bob replied 7 years ago.
Document ID#(NNN) NNN-NNNN
2006 Chevrolet Colorado Pickup - 4WD

Automatic Transmission Fluid and Filter Replacement

Removal Procedure

  1. Raise and support the vehicle.
    Object Number:(NNN) NNN-NNNN Size: SH

    Important: Do not pull on the boot portion of the cable.

  2. Complete the following in order to disconnect the range selector cable (3) from the transmission range selector lever ball stud:
    2.1. Insert a flat-bladed tool between the range selector cable end (5) and the range selector lever (1).
    2.2. Pry the range selector cable end (5) away from the range selector lever (1).

    Object Number:(NNN) NNN-NNNN Size: SH

  3. Remove the bolts securing the transmission range selector cable bracket to the transmission.
  4. Position the transmission range selector cable bracket aside for clearance while lowering the pan.
    Object Number: 23578  Size: SH

  5. Position an appropriate container under the transmission oil pan.
  6. Remove the oil pan bolts from the front and sides of the pan only.
  7. Loosen the rear oil pan bolts approximately 4 turns.
  8. Lightly tap the oil pan with a rubber mallet in order to loosen the pan, allow the transmission fluid to drain into the container.
    Object Number:(NNN) NNN-NNNN Size: SH

  9. Remove the remaining oil pan bolts.
  10. Remove the oil pan and the gasket.
    Object Number:(NNN) NNN-NNNN Size: SH

  11. Grasp firmly while pulling down with a twisting motion in order to remove the filter.
    Object Number: 71459  Size: SH

  12. Remove the filter seal. The filter seal may be stuck in the pump; if necessary, carefully use pliers or another suitable tool to remove the seal.

    Discard the seal.

  13. Inspect the fluid color.
  14. Inspect the filter. The filter may contain the following evidence for root cause diagnosis:
    Bronze slivers indicating bushing wear
    Clutch material
    Steel particles
  15. Clean the transmission case and the oil pan gasket surfaces with solvent, and air dry. All traces of the old gasket material must be removed.

Installation Procedure


    Object Number: 71460  Size: SH

  1. Coat the new filter seal with clean automatic transmission fluid.
  2. Install the new filter seal into the transmission case. Tap the seal into place using a suitable size socket.
    Object Number:(NNN) NNN-NNNN Size: SH

  3. Install the new filter into the case.
    Object Number:(NNN) NNN-NNNN Size: SH

  4. Install the oil pan and a new gasket.
  5. Install the oil pan bolts.

    Tighten
    Tighten the oil pan to transmission case bolts alternately and evenly to 16 N·m (12 lb ft).

  6. Remove the container used to catch the used transmission fluid from under the vehicle.
    Object Number:(NNN) NNN-NNNN Size: SH

  7. Position the transmission range selector cable bracket to the transmission.
  8. Install the transmission range selector cable bracket bolts.

    Tighten
    Tighten the transmission range selector cable bracket bolts to 25 N·m (18 lb ft).

  9. Adjust the automatic transmission range selector cable.
  10. Lower the vehicle.
  11. Fill the transmission to the proper level with DEXRON® VI transmission fluid.
  12. Check the COLD fluid level reading for initial fill only.
  13. Inspect the oil pan gasket for leaks.

Document ID#(NNN) NNN-NNNN
2006 Chevrolet Colorado Pickup - 4WD

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