🔧 Forte - Transmission Fluid Drain & Level Check

Your Forte’s automatic transmission fluid can be serviced as a “drain-and-fill,” then the level is verified at a specific fluid temperature. This refreshes a large portion of the fluid without doing a power flush, and it’s the safest DIY method for most situations.

Difficulty Level: Intermediate | Estimated Time: 1.5-3.0 hours

---

⚠️ Safety & Precautions

• ⚠️ Work on a level surface and support the car with jack stands before going underneath.
• ⚠️ Transmission fluid can be very hot; wear gloves and let things cool if needed.
• ⚠️ Keep the engine running only when instructed, and keep hands/clothes clear of belts/fans.
• ⚠️ Do not smoke; ATF is flammable.
• ⚠️ Battery disconnect is not required for this service.

---

🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 2-ton minimum)
• Jack stands (rated 2-ton minimum)
• Wheel chocks
• Safety glasses
• Nitrile gloves
• Drain pan (8-quart minimum)
• Metric socket set (8mm-24mm)
• Metric wrench set (8mm-24mm)
• Torque wrench (10-80 Nm range)
• Trim clip remover
• Flathead screwdriver
• Fluid transfer pump (specialty)
• Infrared thermometer
• Shop rags
• Funnel

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Automatic transmission fluid (SP-IV spec) - Qty: 5 quarts
• Drain plug crush washer - Qty: 1
• Fill plug washer (if equipped) - Qty: 1
• Brake cleaner - Qty: 1

---

📋 Before You Begin

• Park your Forte on level ground, set the parking brake, and chock the rear wheels.
• Raise the front and support with jack stands so the car sits level (this matters for fluid level).
• Two quick checks (so I can tailor this perfectly): Does your Forte have a transmission dipstick, or is it sealed (no dipstick)? Can you upload a photo of the bottom of the transmission pan showing the drain/level plugs?
• Tip: A sealed unit usually has no dipstick tube.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Warm the transmission fluid

• Drive 10-15 minutes so the transmission shifts normally and the fluid is warm.
• Shut the engine off and open the hood.

Step 2: Safely lift and level the car

• Use a floor jack to lift the front jacking point, then set the car on jack stands.
• Confirm the car is stable and roughly level side-to-side.

Step 3: Remove the lower splash shield (if equipped)

• Use a trim clip remover and flathead screwdriver to remove plastic clips.
• Use a metric socket set (8mm-12mm) to remove shield bolts, then set the shield aside.

Step 4: Locate the fill plug BEFORE draining

• Find the transmission fill point (usually a plug on the transmission case).
• Use a metric socket set (10mm-24mm) to make sure the fill plug will loosen first.
• Tip: Never drain first if you can’t refill.

Step 5: Drain the old fluid

• Place the drain pan under the transmission drain plug.
• Use a metric socket set (10mm-24mm) to remove the drain plug and let the fluid fully drain.
• Clean the plug and magnet (if equipped) using shop rags and brake cleaner.
• Install a new drain plug crush washer, then reinstall the drain plug.
• Torque to 43-49 Nm (32-36 ft-lbs).

Step 6: Refill with the correct ATF

• Use a fluid transfer pump (specialty) and funnel to add SP-IV spec ATF through the fill hole.
• Add back approximately what you drained (most drain-and-fills are roughly 3-4 quarts).
• Reinstall the fill plug/bolt with a new washer if equipped.
• Torque to 32-39 Nm (24-29 ft-lbs).

Step 7: Check the fluid level at temperature (sealed transmissions)

• Start the engine and keep your foot on the brake.
• Move the shifter slowly through P-R-N-D and back to P, pausing 2-3 seconds in each gear.
• With the engine idling, use an infrared thermometer to measure pan temperature and target about 50°C-60°C (122°F-140°F).
• Place the drain pan under the level/check plug, then use a metric socket set (8mm-24mm) to loosen it carefully.
• Correct level is typically a thin stream/dribble at the check temperature; if no fluid comes out, add ATF through the fill hole using the fluid transfer pump (specialty) until it just begins to dribble, then reinstall the check plug.
• Torque to 15-20 Nm (11-15 ft-lbs).

Step 8: Reinstall the splash shield

• Reinstall the splash shield using the metric socket set (8mm-12mm) and clips using the trim clip remover.

Step 9: Lower the car

• Use the floor jack to lift slightly, remove the jack stands, then lower the car.
• Clean any spilled ATF with shop rags and brake cleaner.

---

✅ After Repair

• Start the engine and check for leaks around the drain, fill, and level/check plugs.
• Test drive 10 minutes and confirm smooth shifts (no slipping, flare, or harsh engagement).
• Recheck underneath for seepage after the drive.
• Tip: Keep one quart spare for topping off.

---

💰 DIY vs Shop Cost

Shop Cost: $220-$380 (parts + labor)

DIY Cost: $45-$90 (parts only)

You Save: $130-$290 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.8 hours.

---

🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.