How To Change Transmission Fluid 1999 Toyota Sienna
Supplies Needed
- 10mm Socket
- 21mm Socket
- 24mm Socket
- 6mm Hex Key
- Floor Jack
- Jack Stands
- Level
- Drain Pan
- ~3qt Toyota WS rated transmission fluid
- Oil pump or Funnel with a hose
- OBD2 scanner
When to Modify your Toyota ATF
The dealership told me that the manual fluid should be changed every thirty,000 miles, which seemed a fiddling frequent to me, simply after seeing how little is actually changed when y'all exercise it and how little fluid is actually contained in the transmission, I think that is a good interval. Delight annotation that your Toyota does NOT have lifetime fluid in it (no cars actually exercise).
How To Practice It
1. Lift the vehicle 
My driveway was at an angle such that I only had to lift the front of the vehicle in order to access the manual pan. Information technology isn't as of import that the vehicle be level for draining the fluid, just the closer you tin get to level the more accurate you will exist. If you lot are unsure where the elevator points are for your vehicle, consult your owners transmission. Always remember to use jack stands to back up a vehicle that you lot are going to piece of work under.
ii. Remove The Commuter's Side Bicycle
The Lug basics require a 21mm socket. Alternatively y'all could as well use the lug wrench included with the car. I like to use a socket, considering I tin can remove the lugs faster with my touch wrench. At that place shouldn't exist a whole lot of torque on these lugs, so it isn't difficult to remove them. If y'all opt to not use an impact wrench to remove these, and so you lot volition desire to at least suspension them loose before you lift the vehicle from the footing, and then remove them completely one time the wheel is in the air.
3. Uncover the Transmission Fill Plug
Once you have the wheel off, you will run into the side of the transmission, except for a pocket-size plastic encompass. You will need the 10mm socket to remove the two bolts holding this plastic cover that hides the transmission fill plug. These aren't very tight. Using my deep-well, impact socket I was able to merely grab on to the socket and twist them out by hand.
Once the two 10mm bolts are removed, yous don't need to remove the third fastener property the cover in place. The embrace can pivot out of the style revealing the transmission fill plug.
iv. Remove the Transmission Fill Plug
The manual fill up plug requires a 24mm socket. Information technology isn't on there very tight, so it shouldn't take much to remove it. The plug doesn't accept a significant enough shoulder to prevent it from falling inside the socket, only all I had to practise was invert the socket with my hand underneath information technology and the plug savage right out into my manus.
5. Remove Manual Drain Plug
The transmission drain plug requires a 6mm hex fundamental to remove. You will likely accept some fluid come out when you remove this, so you will want to have your bleed pan underneath information technology while you are removing the plug. This also wasn't fastened very tight, then was easy to remove. You may want to wait until the fluid finishes draining before moving to the adjacent step, but you don't have to. It just depends on how much ATF you want on your hands/tools.
6. Remove the Fill Level Tube and Bleed Transmission
In that location is a small plastic tube that regulates the corporeality of fluid in the bottom of the pan. This is threaded into the bleed hole for the transmission and requires the same 6mm hex key to remove. You cannot see information technology until you start to remove it, just if you push your 6mm hex key up into the hole from the drain plug, you will experience it seat into the hole. Y'all will want to exist gentle with this as it is a plastic part. It doesn't take much forcefulness at all to remove, you lot could even practice information technology without a wrench.
With the plastic tube insert removed the fluid will bleed more or less completely. You should get about 2 quarts or so of old transmission fluid out of the transmission. It will probable be adequately black, just at closer inspection, you volition see that it has a reddish hue to information technology.
7. Replace Plastic Fill Tube
One time the fluid has all drained out, you volition want to put the fill tube back into the transmission. I suggest mitt threading it in with the 6mm hex cardinal. You want to be conscientious not to cross thread information technology or over torque information technology. It doesn't need to be pushed in hard, just inserted all the style upwards until the threads bottom out in the pigsty. Don't supervene upon the drain plug even so, simply go out the pigsty open with your catch pan underneath information technology.
8. Ensure the Vehicle is Level
In guild to make sure that you lot add the correct amount of fluid, yous will demand to accept the auto level. I placed my level against the body of the vehicle in the eye where the two parts of the torso are pinched together. The closer to level you are, the more accurate your ATF volume will be.
9. Fill up the transmission
Using your hand pump or funnel with a hose, add together ATF to the transmission until it starts to run out of the drain hole again. As to what sort of transmission fluid to apply, you need to make sure that the fluid meets the manufacturer specifications. In my particular case, this 2014 Toyota Sienna requires Toyota WS fluid.
You tin can option upwards Toyota make ATF at your nearest dealership parts counter, but information technology is very expensive that way. I desire to say that information technology sells for about $40 per quart. It turns out that there are a lot of different fluids that meet this standard that are cheaper, considering they don't have a Toyota sticker on them. I happened to buy Valvoline Max Life Full Synthetic, because it was at my local AutoZone and a quick bank check on the bottle shows that it indeed does meet the Toyota WS spec, and it was less than $xx for a whole gallon.
ten. Replace the Drain and Fill Plugs
Don't worry about waiting for the drain plug to stop dripping, because until y'all have verified the temperature of the ATF in the transmission, it is probable overfilled, at least a fiddling. The plugs don't require a lot of torque, only snug them down enough that they don't leak. The drain plug will be coming out one more fourth dimension, but the fill plug can be secured and covered support.
11. Start the Engine
Without removing the car from the jack stands, go ahead and start the engine. We are doing this to get the fluid that we take simply added mixed together with the rest of the fluid in the transmission so that we tin can become a better temperature reading. You will annotation that we are only replacing near one/3-1/ii of the transmission capacity, and we accept to become it to a consequent temperature in social club to verify the fill level.
12. Cheque The ATF Temperature
The most authentic way to check the ATF temperature is to use an OBD2 scanner. There are lots of different means to do this using tools like this, but I adopt to apply an OBD2 scanner app on my smartphone paired with a Wi-Fi or Bluetooth OBD2 adapter. The app that I used is OBD Fusion for iOS. It requires that y'all also purchase the optional Toyota Pid pack ($ix.99) through an in-app purchase in order to get the ATF temperature. Once you lot exercise that you tin can add together a guess to the dashboard to testify the live ATF temperature. The car must at least be in the ON position to cheque the ATF temperature, merely in gild for the fluid to circulate, the engine must exist running.
The temperature of the ATF must be betwixt 104 and 113 degrees Fahrenheit. I like to put my pes firmly on the brake and put the vehicle in drive and manually shift through all the gears during this process to mix the fluid well, merely you lot don't have to do that.
13. Turn the Engine Off
Once you meet that the temperature is inside the required spec, wait a few seconds to brand sure that the temperature is stable, then turn the engine off.
14. Drain Any Excess Fluid
Now that the fluid is the correct temperature open up the drain plug without removing the filler tube and let any excess fluid drain out. The vehicle should still be level for this pace. In one case the fluid stops flowing at this footstep, the transmission fluid level is correct.
fifteen. Supersede All Plugs, Covers, and Wheels
Information technology is now fourth dimension to put everything back together. The plugs for the transmission don't demand to have whatsoever significant amount of torque on them. Just tighten them up plenty so that they will not leak. Replace the embrace in the wheel well and secure it with the ii 10mm bolts, once once again, they don't need a lot of torque. When you put the lug nuts on the bicycle, you won't be able to torque them to spec with the wheels in the air, so only mitt tighten them and so that they are snug plenty that the bicycle does non feel loose.
sixteen. Lower the Vehicle
You are at present ready to lower the vehicle from the jack stands. Ever take intendance to lower the auto slowly. Cars are heavy and sudden jolts can brand them fall off of the jack, and that is how things get damaged or people become hurt.
17. Torque Lug Nuts to Spec
The Lug nuts on the 2014 Toyota Sienna should be torqued to 76ft-lbs. This should exist done in a star pattern, skipping 1 commodities equally yous become around the hub. This ensures that they are tightened down evenly. I similar to get effectually the hub 2 times with the torque wrench but to make sure that they are all correct.
Source: http://russianrick.com/index.php/2017/09/10/2014-toyota-sienna-transmission-fluid-change/
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