Toyota Celica/Supra 1971-1985 Repair Guide

Transmission

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FLUID LEVEL CHECK



Manual Transmission

See Figures 1 and 2



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Fig. Fig. 1: The manual transmission oil level should be up to the bottom of the filler plug



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Fig. Fig. 2: Add gear oil through the side of the transmission until the fluid runs out

The oil in the manual transmission should be checked at least every 15,000 miles (24,135 km) and replaced every 25,000-30,000 miles (40,225-48,270 km).

  1. With the car parked on a level surface, remove the filler plug from the side of the transmission housing.
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  3. If the lubricant begins to trickle out of the hole, there is enough. Otherwise, carefully insert your finger (watch out for sharp threads) and check to see if the oil is up to the edge of the hole.
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CAUTION
Prolonged and repeated skin contact with used engine oil, with no effort to remove the oil, may be harmful. Always follow these simple precautions when handling used motor oil.



Avoid prolonged skin contact with used motor oil.
 
Remove oil from skin by washing thoroughly with soap and water or waterless hand cleaner. Do not use gasoline, thinners or other solvents.
 
Avoid prolonged skin contact with oil-soaked clothing.
 

  1. If not, add oil through the hole until the level is at the edge of the hole. Most gear lubricants come in a plastic squeeze bottle with a nozzle; making additions simple. You can also use a common everyday kitchen baster. Use standard GL-4 hypoid type gear oil-SAE 80 or SAE 80/90 for Celica and all Supra models.
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  3. Replace the filler plug, run the engine and check for leaks.
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Automatic Transmission

See Figures 3 and 4



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Fig. Fig. 3: The automatic transmission dipstick will show you if additional fluid is needed, whether the engine and transmission are HOT or COLD



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Fig. Fig. 4: Add automatic transmission fluid through the dipstick tube

Check the automatic transmission fluid level at least every 15,000 miles (24,135 km) (more if possible). The dipstick is in the rear of the engine compartment. The fluid level should be checked only when the transmission is hot (normal operating temperature). The transmission is considered hot after about 20 miles of highway driving.

  1. Park the car on a level surface with the engine idling. Shift the transmission into Neutral and set the parking brake.
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  3. Remove the dipstick, wipe it clean and reinsert if firmly. Be sure that it has been pushed all the way in. Remove the dipstick and check the fluid level while holding it horizontally. With the engine running, the fluid level should be between the second and third notches on the dipstick.
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  5. If the fluid level is below the second notch, use Type F automatic transmission fluid through the dipstick tube on all models through 1983. On 1984 and later models use only Dexron®II Automatic transmission fluid. This is easily done with the aid of a funnel. Check the level often as you are filling the transmission. Be extremely careful not to overfill it. Overfilling will cause slippage, seal damage and overheating. Approximately one pint of ATF will raise the level from one notch to the other.
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Always use the proper transmission fluid when filling your car's transmission. All 1971-83 models use Type F. All 1984 and later models use Dexron® or Dexron®II. Always check with the owner's manual to be sure. NEVER use Dexron® in a transmission requiring Type F or vice versa, as severe damage will result.


WARNING
The fluid on the dipstick should always be a bright red color. It if is discolored (brown or black), or smells burnt, serious transmission troubles, probably due to overheating, should be suspected. The transmission should be inspected by a qualified service technician to locate the cause of the burnt fluid

DRAIN AND REFILL



Manual Transmission

See Figures 5 and 6



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Fig. Fig. 5: Position a drain pan, then loosen the drain plug on the bottom of the transmission



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Fig. Fig. 6: Step back-the fluid comes out rather quickly

The manual transmission oil should be changed at least every 25,000 miles (40,225 km) under normal conditions, or 15,000 miles (24,000 km) under extreme (hot/cold weather, trailer pulling, etc.) conditions.

  1. The oil must be hot before it is drained. If the car is driven until the engine is at normal operating temperature, the oil should be hot enough.
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  3. Remove the filler plug to provide a vent.
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  5. The drain plug is on the bottom of the transmission. Place a large container underneath the transmission and remove the plug.
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  7. Allow the oil to drain completely. Clean off the plug and replace it. Tighten it until it is just snug.
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  9. Fill the transmission with SAE 80 or SAE 80/90 gear oil. This usually comes in a plastic squeeze bottle with a long nozzle; otherwise you can use a squeeze bulb or a kitchen baster to squirt the oil in. Refer to the Capacities chart for the proper amount of oil to put in.
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  11. The oil level should come up to the top of the filler hole.
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  13. Replace the filler plug, drive the car for a few minutes, stop, and check for any leaks.
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Automatic Transmission

See Figures 7, 8 and 9



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Fig. Fig. 7: Most Toyota automatic transmissions have a drain plug



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Fig. Fig. 8: Loosen the retaining screws for the pan, then slowly remove it



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Fig. Fig. 9: Always replace the gasket when installing the pan

The automatic transmission fluid should be changed at least every 25,000-30,000 miles (40,225-48,270 km). If the car is normally used in severe service, such as stop-and-go driving, trailer towing or the like, the interval should be halved. The fluid should be hot before it is drained; a 20 minute drive will accomplish this.

Toyota automatic transmissions have a drain plug in them; if you are in a hurry, you can simply remove the plug, drain the fluid, replace the plug and then refill the transmission. Although this method is fine, a more thorough procedure is recommended.

With the pan removed, you may also want to replace the transmission filter. For details on that procedure, refer to Drive Train of this guide.

  1. Remove the plug and drain the fluid. When the fluid stops coming out of the drain hole, loosen the pan retaining screws until the pan can be pulled down at one corner. Lower a corner of the pan and allow any remaining fluid to drain out.
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  3. After the pan has drained completely, remove the pan retaining screws and then remove the pan and gasket.
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  5. Clean the pan thoroughly and allow it to air dry. If you wipe it out with a rag, you run the risk of leaving bits of lint in the pan which will clog the tiny hydraulic passages in the transmission.
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  7. Install the pan using a new gasket.
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  9. Install the drain plug.
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  11. It is a good idea to measure the amount of fluid drained from the transmission to determine the correct amount of fresh fluid to add. This is because some parts of the transmission may not drain completely, and using the dry refill amount specified in the Capacities chart could lead to overfilling. Fluid is added only through the dipstick tube. Use only the proper automatic transmission fluid; do not overfill.
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  13. Replace the dipstick after filling. Start the engine and allow it to idle. DO NOT race the engine.
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  15. After the engine has idled for a few minutes, shift the transmission slowly through the gears and then return it to Park. With the engine still idling, check the fluid level on the dipstick. If necessary, add more fluid to raise the level to where it is supposed to be.
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