If you are not comfortable doing this, take your Venture to a qualified mechanic.
If you proceed despite the warning:
Here's a general outline. Consult your owner's manual for the precise location of the drain plug and the correct type and amount of transmission fluid. The manual will also have important safety precautions.
Tools you'll likely need:
* Jack and jack stands: Essential for safe access to the underside of the vehicle. NEVER work under a vehicle supported only by a jack.
* Drain pan: Large enough to hold several quarts of transmission fluid.
* Wrench: The correct size for the transmission drain plug (likely 10mm, 13mm, or 14mm – check your manual).
* Torque wrench (recommended): To tighten the drain plug to the correct specification to prevent leaks.
* Funnel: For adding new fluid.
* New transmission fluid: The correct type and amount specified in your owner's manual. (This is extremely important! Using the wrong type can ruin your transmission).
* Gloves: Transmission fluid is messy and can irritate skin.
* Rags or shop towels: For cleanup.
Steps (General - ALWAYS consult your owner's manual for specifics):
1. Safety First: Park your Venture on a level surface, engage the parking brake firmly, and chock the wheels. Wear safety glasses.
2. Warm Up the Transmission: Run the engine for a few minutes to warm the fluid, making it flow more easily.
3. Locate the Drain Plug: Consult your owner's manual for the precise location. It's usually on the bottom of the transmission pan.
4. Position Drain Pan: Place the drain pan under the drain plug.
5. Remove the Drain Plug: Carefully loosen and remove the drain plug, allowing the fluid to drain into the pan. Be prepared for it to be hot!
6. Let it Drain: Allow the fluid to drain completely. This may take 15-30 minutes or more.
7. Replace the Drain Plug: Once drained, carefully reinstall the drain plug and tighten it to the manufacturer's specified torque (consult your owner's manual). Do not overtighten.
8. Check for Leaks: Inspect for any leaks around the drain plug.
9. Refill the Transmission: Locate the transmission fill tube (again, check your manual; it might be on the side or top of the transmission). Using a funnel, add the correct amount and type of transmission fluid specified in your owner's manual.
10. Check Fluid Level: Your owner's manual will describe how to check the transmission fluid level; this might involve running the engine and checking the dipstick (if equipped).
11. Clean Up: Dispose of the used transmission fluid properly according to local regulations.
Important Notes:
* Transmission Type: Your 1999 Chevy Venture may have different transmission options (automatic). The type of fluid required depends on the transmission. The owner's manual is critical here.
* Pan Removal (Possibly Required): Some transmission services require removing the transmission pan to replace the filter and gasket. This is more involved and requires additional tools.
* Professional Help: If you're unsure about any of these steps, take your Venture to a qualified mechanic. Improperly draining or refilling transmission fluid can lead to serious and expensive transmission damage.
This information is for general guidance only. Always consult your owner's manual for specific instructions and safety precautions for your 1999 Chevy Venture.
