🔧 Transmission Fluid - Drain and Fill

On your RAV4, a transmission fluid service is done by draining the old fluid and refilling with the correct Toyota-spec fluid. This is a maintenance service, not a flush, and the final level must be set with the fluid at the proper temperature.

Difficulty Level: Intermediate | Estimated Time: 1.5-2.5 hours

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⚠️ Safety & Precautions

• Work with the vehicle level and supported securely on jack stands.
• Transmission fluid can be hot. Let the vehicle cool before opening the drain plug.
• Use only the specified Toyota-type transmission fluid for this service.
• Do not overfill. The final level must be checked at the correct fluid temperature.
• Battery disconnect is not required for this job.

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🔧 Required Tools

You'll need the following tools for this repair:

• 3/8-inch drive ratchet
• 10mm socket
• 14mm socket
• 24mm socket
• Torque wrench
• Fluid transfer pump
• Drain pan
• Funnel with long hose
• Floor jack (rated 3-ton minimum)
• Jack stands
• Wheel chocks
• Safety glasses
• Nitrile gloves
• Shop towels
• Scan tool or infrared thermometer

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Automatic transmission fluid - Qty: 4-6 quarts
• Transmission drain plug gasket - Qty: 1
• Transmission fill plug gasket - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Warm the vehicle slightly with a short drive, then shut it off.
• Raise and support the vehicle level on jack stands.
• Keep the vehicle level for correct fill.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the lower splash shield

• Use a 10mm socket and ratchet to remove the lower engine cover or splash shield fasteners.
• Set the panel and hardware aside in order.

Step 2: Drain the old fluid

• Place a drain pan under the transmission.
• Use a 24mm socket to remove the transmission drain plug.
• Let the fluid drain completely.
• Install a new drain plug gasket.
• Reinstall the drain plug by hand, then torque to 40 Nm (30 ft-lbs).

Step 3: Remove the fill plug

• Use a 24mm socket to remove the transmission fill plug.
• This creates the opening needed to refill the transmission.

Step 4: Refill with new fluid

• Use a fluid transfer pump and long-hose funnel setup to add fresh fluid through the fill hole.
• Add fluid until it begins to slightly dribble from the fill opening.
• Install a new fill plug gasket.
• Reinstall the fill plug by hand, then torque to 40 Nm (30 ft-lbs).

Step 5: Set the final fluid level

• Start the engine and let it idle.
• With the brake applied, slowly move the shifter through each gear position, then return to Park.
• Use a scan tool or infrared thermometer to monitor transmission fluid temperature.
• At the correct operating range, verify the fluid is just at the fill hole level.
• If needed, add small amounts with the fluid transfer pump until it just begins to run out.
• Only fine-tune the level in small amounts.

Step 6: Reinstall the splash shield

• Use the 10mm socket and ratchet to reinstall the lower cover.
• Make sure all clips and fasteners are seated properly.

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✅ After Repair

• Check underneath for any leaks around the drain and fill plugs.
• Take a short test drive and verify normal shifting.
• Recheck for leaks after the drive.
• Dispose of used transmission fluid at a proper recycling center.

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💰 DIY vs Shop Cost

Shop Cost: $180-$320 (parts + labor)

DIY Cost: $55-$110 (parts only)

You Save: $125-$210 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-2.0 hours.

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🎯 Ready to get started?

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