Safety First! Always consult your vehicle's owner's manual for specific procedures and torque specifications. Work on a level surface, use jack stands (never rely solely on a jack), and wear safety glasses and gloves. ATF is hot when drained and can cause burns.
Procedure (Multiple-Stage Partial Flush):
1. Gather Supplies:
* New ATF fluid (check your owner's manual for the correct type; Dexron III is likely). Purchase enough for multiple changes. You'll likely need several quarts.
* New transmission filter (check the correct filter for your specific transmission).
* Transmission pan gasket (often a reusable gasket, but check your owner's manual).
* Drain pan (large enough to hold several quarts of fluid).
* Socket wrench set (including the correct size for the drain plug and transmission pan bolts).
* Torque wrench (to properly tighten the drain plug and pan bolts).
* Funnel.
* Rags or shop towels.
* Jack and jack stands.
2. Warm up the Transmission: Run the engine and let it idle for 10-15 minutes to warm the ATF. This makes it flow more easily.
3. Access the Transmission Pan: Locate the transmission pan underneath the vehicle. It's usually near the bottom of the engine, towards the front.
4. Drain the ATF: Carefully position the drain pan under the transmission pan. Loosen and then remove the drain plug. Let the fluid drain completely. Note the color and condition of the fluid – dark, burnt fluid indicates the need for this service.
5. Remove the Transmission Pan: Remove the transmission pan bolts carefully. The pan will likely still contain some ATF, so keep the drain pan positioned to catch it. Be prepared for some spillage; it's messy!
6. Replace the Filter: Replace the old transmission filter with the new one.
7. Clean the Pan: Clean the transmission pan thoroughly. Inspect it for any signs of damage or debris. Replace the pan gasket.
8. Reinstall the Pan: Carefully reinstall the transmission pan and tighten the bolts to the manufacturer's specified torque. (Your owner's manual or a repair manual will have this information).
9. Refill with ATF: Add the correct amount of ATF through the dipstick tube. Consult your owner's manual for the correct fill level.
10. Start the Engine and Check ATF Level: Start the engine and let it idle for a few minutes. Then check the ATF level using the dipstick. Add more ATF if needed.
11. Repeat the Process (Multiple Flushes): This is crucial. Drive the vehicle for 50-100 miles, then repeat steps 4-10. You may need to do this 2-3 times to get most of the old fluid out. The fluid will be progressively cleaner with each flush.
Important Considerations:
* Transmission Type: Knowing the exact type of transmission in your Grand Am is essential (e.g., 4T60E, 4T65E). This helps identify the correct filter and fluid.
* Dipstick Check: The ATF level should be checked with the engine running and the transmission in park (P).
* Professional Help: If you are uncomfortable performing this task yourself, it is best to take your vehicle to a qualified transmission specialist. Improperly performing this procedure can damage your transmission.
This is a general guide. Consult a repair manual specific to your 2001 Pontiac Grand Am SE for detailed instructions, torque specifications, and any other specific considerations. Improperly completing this procedure can severely damage your transmission. If you are uncertain about any step, seek professional help.
