However, here's a general overview of the process. This is NOT a substitute for a repair manual and should only be used as a general guide.
Tools and Materials You'll Need:
* New ATF (Automatic Transmission Fluid): Use the type specified in your owner's manual. It's usually Dexron-III, but check your manual to be absolutely certain. You'll need several quarts.
* Transmission Drain Pan: Large enough to hold the old fluid.
* Torque Wrench: Essential for tightening the drain and fill plugs to the correct specification.
* Wrench for Drain Plug: Size will vary depending on your vehicle.
* Wrench for Fill Plug: Size will vary depending on your vehicle.
* Funnel: To pour in the new ATF.
* Jack and Jack Stands: Safely support the vehicle.
* Gloves: To protect your hands.
* Rags or Shop Towels: To clean up spills.
* Optional: ATF Exchange Machine: For a more thorough fluid change. This machine circulates new fluid through the system, replacing much more fluid than a simple drain and fill.
General Steps (Consult your repair manual for specific details):
1. Safety First: Engage the parking brake firmly. Use jack stands to securely lift and support the vehicle after jacking it up. Never work under a vehicle supported only by a jack.
2. Locate the Transmission Drain and Fill Plugs: These are typically located on the bottom and side of the transmission case, respectively. Refer to your repair manual for their exact locations.
3. Drain the Old Fluid: Position the drain pan under the drain plug. Carefully loosen and remove the drain plug, letting the old fluid drain completely. This can take a while.
4. Replace the Drain Plug: Once the fluid has stopped draining, reinstall the drain plug and tighten it to the correct torque specification (found in your repair manual).
5. Locate the Fill Plug: This is usually on the side of the transmission.
6. Fill with New ATF: Using the funnel, slowly add the new ATF to the transmission through the fill plug. Refer to your owner's manual for the correct amount of fluid to add. It's usually done by checking the fluid level through the dipstick (if equipped). Some transmissions require measuring the amount drained to know how much to replace.
7. Check the Fluid Level: With the engine running and the transmission shifted through all gears, verify that the fluid level is correct. This may require adding more fluid. Consult your manual for the proper fluid level checking procedure. You may have to add additional fluid after the initial fill.
8. Reinstall the Fill Plug: Tighten the fill plug to the correct torque specification.
9. Lower the Vehicle: Carefully lower the vehicle using the jack.
10. Dispose of the Old Fluid Properly: Take the used ATF to a recycling center or auto parts store that accepts used oil.
Important Considerations:
* Transmission Type: Different transmissions have different capacities and procedures. Knowing your specific transmission type (e.g., 3-speed, 4-speed, etc.) is crucial.
* Fluid Type: Using the incorrect ATF can severely damage your transmission.
* Torque Specifications: Over-tightening or under-tightening the drain and fill plugs can damage the transmission case or cause leaks.
* Fluid Level: An incorrect fluid level can lead to transmission problems.
Again, this is a general guide only. Always refer to a repair manual specific to your 1997 Oldsmobile Achieva for precise instructions and safety precautions. If you are not comfortable performing this task yourself, take your vehicle to a qualified mechanic.
