Hyundai Coupes/Sedans 1994-1998 Repair Guide

Automatic Transaxle

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FLUID RECOMMENDATIONS



Hyundai recommends the use of Mopar ATF Plus Type 7176 automatic transmission fluid, or equivalent.

It is highly recommended to search out this specific fluid, as performance problems have been noted when using Dexron® type fluids.

LEVEL CHECK



See Figures 1 and 2



Click image to see an enlarged view

Fig. Fig. 1: Some dipsticks are marked with HOT and COLD ranges. Ensure that the fluid is between the upper (FULL) and lower (ADD) limits of the applicable range, based on operating temperature



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Fig. Fig. 2: On some models, the automatic transaxle dipstick is located on the driver's side of the engine compartment

It is very important to maintain the proper fluid level in an automatic transaxle. If the level is either too high or too low, poor shifting operation and internal damage are likely to occur. For this reason, a regular check of the fluid level is essential.

  1. Drive the vehicle for 15-20 minutes, allowing the transaxle to reach operating temperature.
  2.  

If the car is driven at extended highway speeds, is driven in city traffic in hot weather or is being used to pull a trailer, fluid temperatures will likely exceed normal operating and checking ranges. In these circumstances, give the fluid time to cool (about 30 minutes) before checking the level.

  1. Park the car on a level surface, apply the parking brake and leave the engine idling. Make sure the parking brake is FIRMLY ENGAGED. Shift the transaxle and engage each gear, then place the selector in P (PARK).
  2.  
  3. Open the hood and locate the transaxle dipstick. Wipe away any dirt in the area of the dipstick to prevent it from falling into the filler tube. Withdraw the dipstick, wipe it with a clean, lint-free rag and reinsert it until it fully seats.
  4.  
  5. Withdraw the dipstick and hold it horizontally while noting the fluid level. It should be between the upper (FULL) and the lower (ADD) marks.
  6.  
  7. If the level is below the lower mark, use a funnel and add fluid in small quantities through the dipstick filler neck. Keep the engine running while adding fluid and check the level after each small amount. DO NOT overfill as this could lead to foaming and transmission damage or seal leaks.
  8.  

Since the transmission fluid is added through the dipstick tube, if you check the fluid too soon after adding fluid an incorrect reading may occur. After adding fluid, wait a few minutes to allow it to fully drain into the transmission.


CAUTION
The electric cooling fan may switch on any time the engine is running. Keep hands away when checking fluid level.

  1. The dipstick has a high and low mark which are accurate for level indications only when the transaxle is hot (normal operating temperature). The transaxle is considered hot after 15 miles of highway driving.
  2.  
  3. Park the car on a level surface with the engine idling, transaxle in P and the parking brake applied.
  4.  
  5. Remove the dipstick, wipe it clean, then reinsert it firmly. Ensure that it has been inserted fully.
  6.  
  7. Remove the dipstick and check the fluid level while holding the dipstick horizontally. The level should be between the two marks.
  8.  
  9. The fluid on the dipstick should be bright red color. If it is discolored (brown or black), or smells burnt, serious transaxle troubles, probably due to overheating, should be suspected. The transaxle should be inspected to locate the cause of the burnt fluid.
  10.  
  11. If the fluid level is below the lower mark add automatic transaxle fluid through the dipstick tube. This is more easily accomplished with the aid of a funnel and hose. Check the level often between additions, being careful not to overfill the transaxle.
  12.  

Overfilling the will cause slippage, seal damage, and overheating. Approximately one pint of fluid will raise the level from the low mark on the dipstick to the high mark.

DRAIN & REFILL



The preferred Hyundai automatic transaxle service procedure requires the inspection and/or replacement of the transaxle filter at every fluid change. Refer to Pan and Filter Service for the complete procedure.

PAN & FILTER SERVICE



See Figures 3, 4, 5 and 6



Click image to see an enlarged view

Fig. Fig. 3: On most models, the automatic transaxle drain plug is located on the side of the fluid pan



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Fig. Fig. 4: To remove the transaxle pan, carefully loosen the pan bolts. Keep the pan horizontal to prevent bending the pan rail



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Fig. Fig. 5: Some models have the drain plug (arrow) located in the transaxle case



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Fig. Fig. 6: The automatic transaxle is filled through the dipstick tube. A funnel is a must to prevent spills

  1. Raise the front of the vehicle and support it safely.
  2.  
  3. Remove the drain plug from the bottom of the transaxle and allow the fluid to drain.
  4.  
  5. Position a large drain pan under the transaxle pan and have plenty of rags on hand.
  6.  
  7. Slightly loosen all the pan bolts. Tap one corner of the pan with a soft hammer to break the seal.
  8.  
  9. Once the pan is broken loose, support it, remove all the bolts, and then tilt it to one side to drain the remaining fluid.
  10.  
  11. Check the oil filter for clogging and damage and replace as necessary.
  12.  
  13. Clean all the gasket surfaces and the inside of the pan thoroughly. Then, raise the pan and gasket in position with the bolt holes lined up.
  14.  
  15. Support the pan and replace the bolts, tightening them only very gently with your fingers.
  16.  
  17. Tighten the pan bolts diagonally in several stages to 7.5-8.5 ft. lbs. (10-12 Nm).
  18.  
  19. Install the drain plug and torque to 22-25 ft. lbs. (30-35 Nm).
  20.  
  21. Refill the transaxle carefully through the dipstick tube. Add small quantities of fluid and check the fluid level several times until it reaches the lower mark on the dipstick.
  22.  
  23. Start the engine and allow it to idle for about two minutes so that the fluid has a chance to warm to normal operating temperature.
  24.  
  25. Check the fluid level and add fluid as necessary.
  26.  

 
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