Auto Transaxle Fluid Level Checking Procedure (95-40-003)

WARNING: This page is about the Excel Base, Automatic, KM171, which is a different variant/trim than selected.

Publication date: 1995-05-01
Reference number: 95-40-003

AUTO TRANSAXLE FLUID LEVEL CHECKING PROCEDURE

TECHNICAL SERVICE BULLETIN

Reference Number(s): 95-40-003, Date of Issue: May, 1995

Affected Model(s):

Accent 1995, Elantra 1992-1995, Excel 1986-1994, Scoupe 1991-1995 and Sonata 1989-1995

CHECKING PROCEDURE: FLUID LEVEL AND CONDITION

Place the vehicle on a level surface.
Before removing the dipstick, wipe all dirt from the area around the dipstick.
With the selector lever in "P" (Park) and the parking brake applied, start the engine.
The engine should be running at idle speed. Transaxle fluid should be at normal operating temperature (70-8001C) (158-17601F).
Push your foot on the brake pedal and move the selector lever to every position to fill the torque converter and hydraulic circuit with fluid, then place the lever in the "N" (Neutral) position. This operation is necessary to be sure that the fluid level check is accurate.
NOTE: Transaxle fluid level must be checked in neutral.
Check to see if the fluid level is in the "HOT" range on the dipstick. If the fluid is low, add Hyundai Automatic Transaxle Fluid until the level reaches the "HOT" range. Low fluid level can cause a variety of conditions because it allows the pump to take in air along with the fluid. Air trapped in the hydraulic circuit forms bubbles which will aerate the fluid, causing pressure to be erratic.

Fig 1: Checking Fluid Level
Courtesy of HYUNDAI MOTOR CO.

When the transaxle has too much fluid, the gears churn up foam and may cause the same symptoms which occur with low fluid level, resulting in accelerated deteriorations of automatic transaxle fluid. In either case, air bubbles can cause overheating, fluid oxidation, and varnishing, which can interfere with normal valve, clutch and servo operation. Foaming can also result in fluid escaping from the transaxle vent where it may be mistaken for a leak. Along with fluid level, it is important to check the condition of the fluid. When fluid smells burned, and is contaminated with metal bushing or friction material particles, a complete transaxle overhaul or replacement may be needed. Be sure to examine the fluid on the dipstick closely. If there is any doubt about its condition, drain out a sample to verify. After the fluid has been checked, seat the dipstick fully to seal out water and dirt.