Hyundai Santa Fe (TM): Automatic Transaxle System

Hyundai Santa Fe TM 2019-2023 Service Manual / Automatic Transaxle System (SBC) / Automatic Transaxle System

Automatic Transaxle. Repair procedures

Removal

•	Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift. (Refer to General Information - "Lift and Support Points")

1.	Turn ignition switch OFF and disconnect the negative (-) battery cable.

2.	Remove the air cleaner assembly and air duct. (Refer to Engine Mechanical System - "Air Cleaner")

3.	Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery")

4.	Loosen the bolts (B) and nut (A) and then separate the shift cable and cable bracket (C) at the same time.

5.	Dissconnect the main connector (A) and the position switch connector (B).

6.	Separate the wiring clips (A).

7.	Remove the ground line (A).

8.	Loosen the bolts and then separate the engine wiring (A).

Separate the ATF cooler hose (A).

•	Carefully install the clamp not to damage the hose.

•	Install the clamp in a correct direction not to be interfered with other parts.

•	After the installation, start the engine and then check if there are any leakages from the hose.

10.

Loosen the transaxle upper mounting bolts (A) and the starter mounting bolts (B).

Tightening torque :

(A) 42.2 - 54.0 N.m (4.3 - 5.5 kgf.m, 31.1 - 39.8 lb-ft)

(B) 49.0 - 63.7 N.m (5.0 - 6.5 kgf.m, 36.2 - 47.0 lb-ft)

11.	Assemble the engine support fixture use a service special tools .(Beam SST No.: 09200 - 3N000 Adapter SST No.: 09200-2W000, Engine fixture adapter (rear) SST No.: 09200-L1100, Engine fixture adapter (front) SST No.: 09200-L1200)

12.	Using the engine support fixture (A), hold the engine and transaxle assembly safely.

13.	Remove the front wheel guard. [LH] (Refer to Body (Interior and Exterior) - "Front Wheel Guard")

14.

Loosen the transaxle bracket support mounting bolts (A).

Tightening torque :

107.9 - 127.5 N.m (11.0 - 13.0 kgf.m, 79.6 - 94.0 lb-ft)

15.

Loosen the bolts and then removing the transaxle bracket (A).

Tightening torque :

58.9 - 78.5 N.m (6.0 - 8.0 kgf·m, 43.4 - 57.9 lb-ft)

16.	Remove the under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

17.	Remove the sub frame. (Refer to Suspension System - "Sub Frame")

18.	Remove the driveshaft assembly. (Refer to Driveshaft and Axle - "Front Driveshaft")

19.

Loosen the bolts and then removing the roll rod support bracket (A).

Tightening torque :

49.0 - 68.6 N.m (5.0 - 7.0 kgf·m, 36.2 - 50.6 lb·ft)

20.

Remove the dust cover (A).

Tightening torque :

42.2 - 48.1 N.m (4.3 - 4.9 kgf.m, 31.1 - 35.4 lb-ft)

21.

Loosen the mounting bolts (A) of the torque converter with rotating the crankshaft.

Tightening torque :

45.1 - 52.0 N.m (4.6 - 5.3 kgf.m, 33.3 - 38.3 lb-ft)

22.

Remove the automatic transaxle with a jack after loonsening the mounting bolts (A, B).

Tightening torque :

(A) 42.2 - 53.9 N.m (4.3 - 5.5 kgf.m, 31.1 - 39.8 lb-ft)

(B) 42.2 - 48.1 N.m (4.3 - 4.9 kgf.m, 31.1 - 35.4 lb-ft)

•	Be careful not to damage other system or parts near by when removing the transaxle assembly.

Installation

To install, reverse the removal procedure.

1)	Before reassembling the automatic transaxle to the engine assembly, make sure that there is no gap (A) between automatic transaxle and engine assembly as below illustration. Do not reassemble the automatic transaxle to the engine assembly when this gap (A) exist.

While there is a gap, It would be meaning that the key of oil pump gear is not assembled properly to the torque converter hub. In this case, remove the automatic transaxle assembly and then reinstall the torque converter to automatic transaxle assembly according to the key shape of oil pump gear.

[Correct Assembly (A) - Oil Pump Key Part (B) Engaged Properly]

[Incorrect Assembly (C) - Torque Converter Protruded due to Interference with the Oil Pump Key Part (D)]

3)	If the mounting bolt is tightened forcibly in spite of a gap, key of oil pump gear will be damaged or broken. In this case, replace the automatic transaxle assembly.

•	Follow the separted each procedure as below according to reinstallation or replacing with a new automatic transaxle.

In case of the reinstallation.

(1)

Replace the oil seal with a new one when ATF leak occurred because of differential oil seal damage.

•	When installing the new oil seal, use the special service tool (SST No.:09453-3L241, 09231-H1100).

(2)	Check the ATF level after refilling the automatic transaxle with fluid. (Refer to Automatic Transaxle System - "Automatic Transaxle Fluid")

(3)	Drain the coolant. (Refer to Engine Mechanical System - "Coolant")

(4)

Clear the diagnostic trouble codes (DTC) using the diagnotic tool.

•	Even though disconnecting the battery negative terminal, the DTCs will not be cleared. So, be sure to clear the DTCs using the diagnotic tool.

In case of the replacing with a new automatic transaxle.

•	New automatic transaxle is already filled with specified quantity ATF.

•	For that reason, it does not necessary to refill and check the ATF but the remaining ATF inside of ATF cooler have to be removed.

(1)	Set the air blow gun in front of the ATF cooler hose (A).

(2)	Set the cup in front of the ATF cooler hose (B).

(3)	Remove the remaining ATF by blowing air into ATF cooler hose (A).

(4)	Install the ATF cooler hose (A) and (B).

(5)	Refil the coolant. (Refer to Engine Mechanical System - "Coolant")

(6)

Reset the automatic transaxle adaptive values using the diagnotic tool.

•	Even though disconnecting the battery negative terminal, the DTCs will not be cleared. So, be sure to clear the DTCs using the diagnotic tool.

(7)

Perform the oil pressure characteristics input procedure.

•	Oil pressure characteristics (bar code) location

•	Oil-pressure characteristics input (Transaxle exchange)

(8)	Perform the TCM adaptive values learning procedure. (Refer to Automatic Transaxle Control System - "Repair Procedures")

Automatic Transaxle Fluid (ATF). Components and components location

Components Location

1. ATF Injection plug (Eyebolt)
2. ATF injection plug gasket
3. ATF level check plug

4. ATF level check plug gasket
5. Drain plug gasket
6. Drain plug

Automatic Transaxle Fluid (ATF). Repair procedures

Automatic Transaxle Fluid (ATF) Level Check

•	When checking the oil level, be careful not to enter dust, foreign matters, etc. from fill hole.

•	Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift. (Refer to General Information - "Lift and Support Points")

1.	Remove the air duct and air cleaner. (Refer to Engine Mechanical System - "Air Cleaner")

2.	Remove the eyebolt (A).

3.	Add ATF SP-IV 700cc to the ATF injection hole (A).

4.	Start the engine. (Don’t step on brake and accelerator simultaneously.)

5.	Confirm that the temperature of the automatic transaxle oil temperature sensor is 50 - 60°C (122 - 140°F) with the diagnostic tool.

Shift the select lever slowly from “P” to “D”, then “D” to “P” and repeat one more at idle.

•	Pause at each gear position more than 2 seconds.

7.	Raise the vehicle, and make sure it is securely supported.

8.	Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

In case by ATF warmer, loosening the mounting bolts and then separate the ATF warmer (A).

Tightening torque :

9.8 - 11.7 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.6 lb-ft)

10.

Remove the ATF level check plug (A) from the valve body cover.

•	At this time, the vehicle must be at a level state.

11.

If the ATF flows out of the overflow plug in thin steady stream, the ATF level is correct.

Then finish the procedure and tighten the ATF level check plug.

•	Excess : Drain quantity exceed 900cc for tow minutes. {50 - 60°C (122 - 140°F)}

•	Shortage : No ATF flows out of the overflow plug.

•	Replace the gasket before reinstalling the ATF level check plug.

•	Turn the oil level check plug clockwise until it is set.

•

If there is no damage at the automatic transaxle and the ATF cooler, the ATF cooler hose, transaxle case, valve body tightening state are normal, ATF must drip out after performing above 1 to 7 procedures. After performing above 1 to 7 procedures, if the oil doesn’t drip out, inspect the automatic transaxle assembly.

12.	Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

13.

Put down the vehicle with the lift and then tighten the eyebolt (A).

Eyebolt tightening torque :

4.9 - 5.9 N.m (0.5 - 0.6 kgf.m, 3.6 - 4.3 lb.ft)

•	Replace the gasket (A) before reinstalling the eyebolt.

Replacement

ATF of 8 speed automatic transaxle doesn’t be replaced. But, if the vehicle is severe use or business use, replace ATF every 60,000 miles for severe usage.

Severe usage is defined as

•	Driving in rough road (Bumpy, Gravel, Snowy, Unpaved road, etc).

•	Driving in mountain road, ascent / descent.

•	Repetition of short distance driving.

•	More than 50% operation in heavy city traffic during hot weather above 30°C (86°F) .

•	Police, Taxi, Commercial type operation or trailer towing, etc.

•	Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift. (Refer to General Information - "Lift and Support Points")

1.	Remove the air duct and air cleaner assembly. (Refer to Engine Mechanical System - "Air Cleaner")

2.	Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

Remove the drain plug (A) and reinstall the drain plug after draining ATF totally.

•	Replace the gasket before reinstalling the drain plug.

Drain plug tightening torque :

33.3 - 43.1 N.m (3.4 - 4.4 kgf.m, 24.6 - 31.8 lb-ft)

4.	Put down the vehicle with the lift and then remove the eyebolt (A).

5.	Add ATF SP-IV 700cc to the ATF injection hole (A).

6.	Check the ATF level. (Refer to Automatic Transaxle System - "Automatic Transaxle Fluid (ATF)")

7.	Then finish check the ATF level procedure and install the under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

Put down the vehicle with the lift and then tighten the eyebolt (A).

Eyebolt tightening torque :

4.9 - 5.9 N.m (0.5 - 0.6 kgf.m, 3.6 - 4.3 lb.ft)

•	Replace the gasket (A) before reinstalling the eyebolt.

Special service tools

Special Service Tools Tool (Number and Name) Illustration Use 09200-3N000 Engine support fixture (Beam) Removal and installation of the transaxle.Use this beam (SST No. : 09200-3N000) with the supporter ...

Hydraulic System

Description and operation Description • The hydraulic system consists of a valve body, an oil filter and an oil pump. • The oil pump is powered by the engine. ATF passes through the oil filter and ...