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Old 04-14-2010, 09:44 AM   #1 (permalink)
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Hello everyone.
I just bought my '07 elantra and joined the forum not long ago.
The car is pretty much basic and I'm planning to do few maintenance job myself. (eg. oil change, air filter, brakes, etc)
The car has about 35,700 miles and I was wondering if I need to change the transmission fluid yet.
There is no DIY's for this, so if anyone has already done it, please can you reply with advise on how to do change the fluid?
(also, should I buy tranny fluid from a dealership or any other auto store like pepboys would be just as good?)
By the way, it's automatic.
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Old 04-14-2010, 10:03 AM   #2 (permalink)
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welcome to the forums

there have been a great many posts about this subject in the past (please use the search engine) here is one link to start you off, its from a different hyundai model but the methods are exactly the same




http://www.hyundai-forums.com/t46623-trans...-and-refill.htm
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Old 04-15-2010, 09:07 PM   #3 (permalink)
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Thank you, Montego
I also found a good tips from www.hmaservice.com about changing tranny fluid.
I thought the car wouldn't come with the 10yr/100k miles warranty since I'm not an original owner,
but I just found out 2nd owner would still good for 5yr/60k miles warranty.
So, I'll leave maintenance work to a dealership for now. (so the warranty won't be void)
I got few small issues with the car so I'm hoping the warranty would take care of them.
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Old 04-22-2010, 07:05 AM   #4 (permalink)
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I do not believe that HMA can REQUIRE you to have maintenance to be performed at a dealer to keep the warranty in effect. If you DIY, however, you better keep good records, and receipts. They may use anything to disallow warranty coverage.
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Old 04-23-2010, 02:53 AM   #5 (permalink)
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I found out that the previous owner never gave me any receipts for any maintenance done to the car,
so I think I might as well do this myself. (or have a shop/dealer do it but from what the manual shows, it doesn't seem that difficult to do)

Here is an instruction from www.hmaservice.com:

REPLACEMENT
If you have a fluid changer, use this changer to replace the fluid. If you do not have a fluid replace the fluid by the following procedure.
1. Disconnect the hose, which connects the transmission and the oil cooler (inside the radiator).
2. Start the engine and let the fluid drain out.

--------------------------------------------------------------------------------

Running conditions : "N" range with engine idling
--------------------------------------------------------------------------------

The engine should be stopped within one minute after it is started. If the fluid has all drained out before then, the engine should be stopped at that point.

3. Remove the drain plug(A) from the bottom of the transmission case to drain the fluid.



4. Install the drain plug via the gasket, and tighten it the specified torque.

--------------------------------------------------------------------------------

TORQUE:
35~45 Nm (3.5~4.5kgf.m, 25~32lb-ft)
--------------------------------------------------------------------------------

5. Pour the new fluid in through the oil filler tube.

Stop pouring if the full volume of fluid cannot be poured in.

6. Repeat the procedure in step (2).

Check the old fluid for contamination. If it has been contaminated, repeat the steps (5) and (6).

7. Pour the new fluid in through the oil filler tube.
8. Reconnect the hose, which was disconnected in step (1) above, and firmly replace the oil level gauge.
(In case of this "replace", this means after wiping off any dirt around the oil level gauge, insert it into the filler tube.)
9. Start the engine and run it at idle for 1~2 minutes.
10. Move the select lever through all positions, and then move it to the "N" or "P" position.
11. Drive the vehicle until the fluid temperature rises to the normal temperature (70~80C(158~176F)), and then check the fluid level again. The fluid level must be at the HOT mark.
12. Firmly insert the oil level gauge into the oil filler tube.

Here are some pictures that I took this morning.
If any of you have actually done this, or know all the schematics, can you confirm if the pictures indicate the right hose for
insctruction #1?

looking from above
(btw, the opening hose beneath the battery is for the intake, I just took out the thing to get a better view)


looking from under the car


under the car from a different view


sorry about the writing on the pictures-kinda hard to use the mouse actually.
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Old 04-26-2010, 02:01 PM   #6 (permalink)
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If my pictures are bad enough that you can't figure out, let me know. (I got few more pictures but probably won't be much
better though)
I've already ordered 7 qt transmission fluids from hyundai oem parts online few days ago, so I'm still waiting for them.
I was hoping someone could help me out figuring out if the tranny hose is the right one from my pictures,
but since I'm not getting much help here, I'll try to do it without much further assistance later.
(I've once changed transmission fluid before so I'm somewhat familiar with it but just not sure on this model)

By the way, I doubt that this model has the same/similar assembly to previous generation elantra but if so, can someone
tell me if there is any link towards to pictorial how to's on changing transmission fluid? (I took Montego's advise on searching the topic
on this site but haven't found much luck yet)

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Old 04-26-2010, 04:33 PM   #7 (permalink)
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I hate to keep adding replies after another but I thought I need to clarify few more things;
picture which shows the hose from under the car was taken after I took out the plastic motor/transmission shield.
(so the hose won't be visible unless you take it out first)
And the link which Montego gave me on refilling transmission for sonata is what I consider the closest to what
I need except it involves only using a drain plug. (btw, I never knew about replacing a new a crush washer-so that came really handy)
So I thought I needed a different how to's which involves with disconnecting the hose and the picture to show which hose it is.

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Old 05-02-2010, 04:41 AM   #8 (permalink)
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I am replying since I changed the transmission fluid today.
(I feel like talking to myself but I at least hope that this will come in handy for DIY people like me)
It was a messy job but I got the job done-finally.
Took the car out for a test drive and it shifts/runs so much better now. (used hyundai tranny fluids)
Just letting anyone who'd do the job yourself, the hose from the picture
is the one to disconnect as mentioned in the instruction. (and get a 15/16 socket for the drain plug)
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Old 05-02-2010, 12:47 PM   #9 (permalink)
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QUOTE (chris07 @ May 2 2010, 04:41 AM)
Quote:
I am replying since I changed the transmission fluid today.
(I feel like talking to myself but I at least hope that this will come in handy for DIY people like me)
It was a messy job but I got the job done-finally.
Took the car out for a test drive and it shifts/runs so much better now. (used hyundai tranny fluids)
Just letting anyone who'd do the job yourself, the hose from the picture
is the one to disconnect as mentioned in the instruction. (and get a 15/16 socket for the drain plug)
Chris,

I am also trying to change my transmission fluid on a 07 Santa Fe GLS.
It appears that on my car, the lines that go into the radiator cary coolant rather than trans fluid. When I disconnected the gold line from the radiator, green antifreeze came out. I gather that the trans is water cooled.
I guess the only way to drain the trans fluid is thru the plug....
Any ideas?

Thanks!
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Old 05-02-2010, 03:15 PM   #10 (permalink)
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QUOTE (chris07 @ May 2 2010, 04:41 AM)
Quote:
I am replying since I changed the transmission fluid today.
(I feel like talking to myself but I at least hope that this will come in handy for DIY people like me)
It was a messy job but I got the job done-finally.
Took the car out for a test drive and it shifts/runs so much better now. (used hyundai tranny fluids)
Just letting anyone who'd do the job yourself, the hose from the picture
is the one to disconnect as mentioned in the instruction. (and get a 15/16 socket for the drain plug)
Well done Chris !

Tip: Drive about 1000 miles and do it again, this way you'll will drive with mostly new fluid.

If the previous owner never changed the fluid whatever was left in the torque converter would have contaminated the new fluid, so for transmission's sake
do it again. Also well done in using Hyundai's own, that's the way to go.
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