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Discussion Starter · #1 ·
:( Dear friends, I own a 1999 Sephia that I bought used with 49,000 miles ayear ago Dec. I have been having problems shifting quickly and smoothly esp. from 1st to 2nd and 4th to fifth. Also difficulty getting into reverse. The glove compartment yielded a receipt for a transmission fluid change.(i thought but have been unablee to relocate). Yes, I just located the work order for a change where they replaced four qt.s of gear lube at 47,500 miles. But I used to drive Escorts and they required automatic trans fluid in the MANUAL and they shifted perfectly. Given the Escort had a Gertrag designed and possibly German built transmission this is not a surprise.
I'm wondering if the Sephia should have auto trans fluid ? Or is the problem shifting common to Kias? I'm going to call the place that did the fluid change on Monday and look up the requirement for trans lube on monday also.
I have tried lubing the shifter "ball" at the base of the stick and lubing the (u-joint) on the shifter rod that goes between the shifter and the trans. These helped but didn't cure the problem.
Any input on this issue would be appreciated. Thanks. speedster1
 

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2015 Buick Verano "Leather Group", 2015 Kia Optima Hybrid
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shift linkage ?
fluid for the 5-speed goes directly into trans. there is a i think it is a 17MM bolt kinda on the front side of the tranny.
dont use auto fluid a manual. the manual fluid is much much thicker (70w90) where as the auto fluid is really thin. I wouldnt recommend it at all.



 

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Some manual trannys use ATF, I think mostly GMs but don't quote me. My 97 Sephia's manual says regular gear oil as 1fastkia says and also have a sticker under my hood specifying that. Check your manual or under the hood since yours is a different generation.
 

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2015 Buick Verano "Leather Group", 2015 Kia Optima Hybrid
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he has a 99 same as me.
yea some cars do use atf but i wouldnt recommend it in a car that calls for 70w90.



 

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If you are a speed demon and speed shift without using the clutch you could have worn down the brass syncros in the tranny. Or if you bought the car used and it was raced this could what is plauging the tranny. Otherwise I would suspect the clutch.
 

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I have a 99 Sephia and I get a little noise once in a while going from 1'st to 2'nd and 2'nd to 3'rd. It also goes into reverse hard once in a while. The reverse thing is just play in the shift linkage, cuz' when I pop it in 5'th and then go straight down it pops right in. The problem with the forward gears has to be a problem with the syncros in the tranny not aligning the gears properly. I changed my tranny oil with synthetic gear lube and it didn't help a bit. I just pull a little lighter when I shift and it eases into gear when the syncros align and it seems fine. As long as you baby it a little, it should be fine for years to come.
 

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Discussion Starter · #8 ·
Thanks for the input. But I think that it was a clutch adjustment problem. i.e. when the pedal was fully depressed the clutch was not quite released. I adjusted the clutch pedal for the specified free-play of 3-5mm and this seems to have solved the problem. Before the adjustment there was @20mm of free-play!
 

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2015 Buick Verano "Leather Group", 2015 Kia Optima Hybrid
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how do I adjust the clutch pedal?



 

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Discussion Starter · #11 ·
Dear fellow owner, adjusting the clutch is not very hard. First position yourself so that you can look up above the clutch [pedal(with the engine off and car blocked). Using a light of some sort is a necessity. You will notice a rod that goes from the clutch pedal lever towards the firewall. There is a lock nut that you need to loosen. Once it is loosened you can turn the rod that it is threaded onto one way to give more play and the other way to decrease play. The specification is only 3-5 mm of freeplay from where the clutch pedal is fully up down to where you JUST START TO FEEL THE PEDAL BEGIN TO ENGAGE EVEN JUST A SMALL AMOUNT. Turning the rod discussed that goes into the master cylinder will probably require a fraction of one turn to get it properly adjusted. If there is too much free play you will not be able to fully disengage the clutch even with the pedal fully down! Too little free play could cause the clutch to never fully engage even with the pedal all the way up! Also too little freplay will cause the clutch to engage too high up on it's upward travel as you let it up. The lock nut requires a 12mm open end wrench. You should be able to turn the adjusting rod with your fingers(if it is greasy use a clean piece of rag, a small piece so you can see what you are doing. Let me know how you make out- but check the free play first! It may be adjusted properly already. You could just create a headache for youself. Good luck!
 

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2015 Buick Verano "Leather Group", 2015 Kia Optima Hybrid
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it has a lot of play. car has been abused and has 120000 miles. THanks for the info Ill be doing it in a little while. seems to me there is to much play before the clutch engages as you are depressing it. def. more than 3-5 MM



 
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