To drain the transmission fluid (and effectively drain the torque converter as well), follow these steps:
1. Warm up the transmission: Run the engine until the transmission fluid is warm to the touch (but not excessively hot). This helps ensure better fluid flow.
2. Locate the transmission drain plug: This is typically on the bottom of the transmission pan. Consult your owner's manual or a repair manual specific to your 1994 S10 Blazer for the exact location. It's usually a hex-head bolt.
3. Position a drain pan: Place a large drain pan under the drain plug to catch the fluid. Transmission fluid is messy and harmful to the environment, so be prepared.
4. Remove the drain plug: Carefully loosen and remove the drain plug, letting the fluid drain completely. This will take some time.
5. Replace the drain plug: Once the fluid has stopped draining, replace the drain plug and tighten it securely to the manufacturer's specifications. Don't overtighten!
6. Remove and clean (or replace) the transmission pan: This allows you to drain even more fluid and inspect the pan for any debris or damage. Replace the gasket when you reinstall the pan.
7. Refill the transmission: After reinstalling the pan, refill the transmission with the correct type and amount of transmission fluid. Your owner's manual will specify the type and quantity. Consult the manual for the proper procedure for checking the transmission fluid level. This often involves running the engine and checking the dipstick while the engine is running.
Important Considerations:
* Safety First: Work on a level surface and use jack stands to support the vehicle securely. Never work under a vehicle supported only by a jack.
* Fluid Disposal: Properly dispose of the used transmission fluid according to local regulations. Most auto parts stores will take used oil and transmission fluid.
* Manual vs. Automatic: These instructions assume an automatic transmission. If you have a manual transmission, there's no torque converter to drain.
* Repair Manual: A repair manual specific to your 1994 Chevy S10 Blazer is highly recommended. It will provide diagrams, torque specifications, and other crucial information for a successful fluid change.
Draining the transmission fluid will effectively drain the fluid from the torque converter, but you cannot isolate the torque converter for separate draining. Consider having a professional mechanic perform this task if you're not comfortable working on your vehicle.
