F-150 - Automatic Transmission Fluid Change ⚙️

On your 2016 F-150 5.0L 4WD, the automatic is a sealed system and Ford does not provide a simple drain plug. A proper service is a bit advanced for a first DIY, but I’ll walk you through the pan-drop + filter change method, which is the safest at home.

First, two quick questions:

• ✅ Do you have access to a flat, solid surface (like a level driveway or garage floor)?
• ✅ Do you have at least 4 sturdy jack stands and a floor jack rated for a truck?

If “no” to either, I strongly recommend a shop for this job. It’s safety-critical.

F-150 - Important Notes Before You Start ⚠️

• ⚠️ Transmission type: Your truck may have a 6R80 6-speed (most common) or a 10R80 10-speed if it was a very late build or swapped. The procedure is similar, but fluid spec and fill check temps differ.

Check your owner’s manual or under-hood label:

• 6R80: Uses Mercon LV ATF.
• 10R80: Uses Mercon ULV ATF.

If you’re not sure which you have, tell me and I’ll help you identify it from the shifter pattern and pan shape.

F-150 - Parts & Fluids You’ll Need 📦

• 🛠️ Automatic transmission fluid
  • 6R80: ~7–8 quarts of Mercon LV (pan drop only, not full dry fill).
  • 10R80: ~6–7 quarts of Mercon ULV (pan drop only).
  • Always buy 1–2 quarts extra in case you spill or need to top off.
• 🛠️ Transmission filter kit (filter + pan gasket) specific to your transmission.
• 🛠️ New pan bolts (optional but recommended if Ford specifies one-time-use).
• 🛠️ Brake cleaner (for cleaning the pan and magnet).
• 🛠️ Shop rags / paper towels.
• 🛠️ Drain pan (large, at least 10–12 quart capacity).

F-150 - Tools You’ll Need 🔧

• 🛠️ Floor jack and 4 jack stands
  • Floor jack: a hydraulic jack used to lift the truck.
  • Jack stands: metal stands that safely hold the truck up; never rely on the jack alone.
• 🛠️ Socket set (metric)
  • Common sizes for pan bolts: 8mm, 10mm, or 13mm (varies by pan).
  • Ratchet and extensions.
• 🛠️ Torque wrench (in ft-lb or Nm)
  • Torque wrench: a tool that lets you tighten bolts to a specific force so you don’t strip or break them.
• 🛠️ Torx or Allen bits if your fill plug uses them (often 8mm Allen or Torx).
• 🛠️ Fluid transfer pump or hand pump
  • Fluid pump: a small pump that moves fluid from the bottle into the transmission through the fill port.
• 🛠️ Infrared thermometer or scan tool that can read transmission fluid temperature (for correct level check).
• 🛠️ Plastic scraper (for old gasket material, if needed).
• 🛠️ Safety gear: gloves, safety glasses.

F-150 - Safety First 🧯

• ⚠️ Always support the truck on jack stands, never just the jack.
• ⚠️ Work on a level surface so fluid level readings are accurate.
• ⚠️ Transmission fluid can be very hot. Let the truck cool until the pan is warm, not burning.
• ⚠️ Keep fluid off exhaust parts; it’s flammable.

F-150 - Overview of the Job 🧩

• 🛠️ Step 1: Safely lift and level the truck.
• 🛠️ Step 2: Open the fill plug first (make sure you can refill).
• 🛠️ Step 3: Remove the transmission pan and drain fluid.
• 🛠️ Step 4: Replace the filter and clean the pan.
• 🛠️ Step 5: Reinstall the pan with new gasket.
• 🛠️ Step 6: Refill with new fluid.
• 🛠️ Step 7: Warm up, cycle gears, and set final fluid level at the correct temperature.

F-150 - Step 1: Lift and Support the Truck 🧱

• 🛠️ Park on a level surface, set the parking brake, and chock the rear wheels (blocks behind tires).
• 🛠️ Put the shifter in PARK and turn the engine off.
• 🛠️ Use the floor jack to lift the front of the truck at the front crossmember (the big metal beam under the engine).
• 🛠️ Place jack stands under the frame rails on both sides.
• 🛠️ Lift the rear slightly and support with jack stands so the truck is level front-to-back.
• 🛠️ Gently shake the truck to confirm it’s stable before going underneath.

F-150 - Step 2: Locate and Open the Fill Plug 🧴

Ford sealed transmissions usually have a fill plug on the side of the transmission case or a fill/check plug in the pan with an internal standpipe.

• 🛠️ Crawl under and locate the transmission:
  • Behind the engine, in front of the transfer case.
  • Large metal pan on the bottom = transmission pan.
• 🛠️ Look for a fill plug:
  • On the passenger side of the case (often an 8mm Allen or Torx plug), or
  • In the pan itself (a small plug inside a larger drain plug on some designs).
• 🛠️ Use the correct socket/Allen/Torx to crack the fill plug loose but don’t remove it fully yet.
  • If you cannot remove the fill plug, do NOT continue. You must be able to refill.

F-150 - Step 3: Remove the Pan & Drain Fluid 💧

• 🛠️ Position the large drain pan under the transmission pan.
• 🛠️ If your pan has a drain plug, remove it and let fluid drain. Then reinstall the plug loosely while you remove the pan.
• 🛠️ Remove the pan bolts:
  • Use the correct socket (often 8mm or 10mm).
  • Loosen bolts around the pan, leaving a few at one end threaded in a few turns.
  • Gently pry the pan down at the opposite end so fluid drains out one side.
• 🛠️ Once most fluid is out, support the pan with one hand and remove the remaining bolts. Lower the pan carefully; it will still have fluid inside.

F-150 - Step 4: Filter Replacement & Pan Cleaning 🧼

• 🛠️ With the pan off, you’ll see the filter attached to the valve body (the flat metal “brain” of the transmission).
• 🛠️ Remove the filter:
  • Some are held by Torx or small bolts; others just pull out of a seal.
  • Have the drain pan ready; more fluid will come out.
• 🛠️ Install the new filter:
  • Match the old and new filters to confirm they’re identical.
  • Push the new filter firmly into place or bolt it up as required.
• 🛠️ Clean the pan:
  • Remove the magnet from the pan, wipe off the metal “sludge,” and reinstall it.
  • Spray the pan with brake cleaner and wipe it clean and dry.
  • Remove any old gasket material from the pan and transmission mating surface with a plastic scraper.
• 🛠️ Install the new gasket on the pan (some gaskets clip into place; others just sit on the pan).

F-150 - Step 5: Reinstall the Pan 🔩

• 🛠️ Hold the pan up to the transmission and start all bolts by hand to avoid cross-threading.
• 🛠️ Snug the bolts in a crisscross pattern (center outward) so the gasket seats evenly.
• 🛠️ Torque the pan bolts:
  • Typical Ford spec for these pans is around 8–10 Nm (71–89 in-lb), which is about 6–7 ft-lb.
  • Do not overtighten; you can easily strip the threads or warp the pan.
• 🛠️ If there is a separate drain plug, torque it to about 20–25 Nm (15–18 ft-lb) unless your specific pan says otherwise.

F-150 - Step 6: Initial Refill 🧴

• 🛠️ Remove the fill plug fully.
• 🛠️ Use the fluid pump to add:
  • 6R80: Start with about 5–6 quarts of Mercon LV.
  • 10R80: Start with about 5 quarts of Mercon ULV.
• 🛠️ Reinstall the fill plug finger-tight for now so fluid doesn’t spill when you start the engine.

F-150 - Step 7: Warm Up & Final Fluid Level Check 🌡️

Ford sealed transmissions must be checked at a specific fluid temperature with the engine running and the truck level.

• 🛠️ Lower the truck back onto the ground but keep it level (or leave it on stands if it’s perfectly level and safe).
• 🛠️ Start the engine with the transmission in PARK.
• 🛠️ With your foot on the brake, slowly move the shifter through all gears:
  • P → R → N → D → M (or L), pausing 2–3 seconds in each, then back to PARK.
  • This fills the circuits and the new filter with fluid.
• 🛠️ Monitor transmission fluid temperature:
  • Best: use a scan tool that reads transmission fluid temp (TFT).
  • OK: use an infrared thermometer on the pan as a rough guide.
• 🛠️ Target temperature:
  • 6R80: Check level at about 30–50°C (86–122°F).
  • 10R80: Check level at about 40–50°C (104–122°F).
• 🛠️ With the engine idling, truck level, and in PARK, remove the fill/check plug:
  • If fluid dribbles out in a thin stream, the level is correct.
  • If no fluid comes out, pump in more fluid until it just starts to dribble out.
  • If fluid pours out heavily, let it drain until it becomes a thin stream.
• 🛠️ Once correct, reinstall and torque the fill plug:
  • Typically around 20–30 Nm (15–22 ft-lb) depending on plug size.

F-150 - Final Checks & Cleanup ✅

• 🛠️ Wipe down the pan and surrounding area so you can spot any new leaks.
• 🛠️ Take a short, gentle test drive (5–10 minutes), then recheck for leaks.
• 🛠️ If you have a scan tool, confirm there are no transmission codes.
• 🛠️ Dispose of old fluid properly at a recycling center or parts store that accepts used oil/ATF.

F-150 - Is This Job Right for You? 🤔

This is a moderate-to-advanced DIY because of:

• 🛠️ Working under a heavy truck on stands.
• 🛠️ Need for correct fluid temperature and level procedure.

If any of this feels too much, I can help you find a shop and give you a cost estimate.

Next step: Tell me whether you have the 6R80 or 10R80 (or send a photo of the transmission pan), and I’ll tighten the fluid amount and torque specs specifically for your exact unit.

HowToo makes it easy: below this answer you’ll see the correct fluid, filter kit, gasket, and tools for your truck. You can add them to your cart right from the parts section, with fast shipping so you can plan the job.