2000 Hyundai Elantra Transmission - Hyundai Forums : Hyundai Forum
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#1 Old 02-25-2009, 10:25 PM
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geovair66
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I have a 2000 elantra with transmission issues. Ive read one post similar to my issue with slight differences. My sister was driving the car when she felt like the car was hitting an ice patch, she said the car went to first gear right now! its since been brought to my house and put on a computer. codes are p1709 kick down servo, p0734 a/t 4th gear ratio, p0732 2nd gear ratio and p0722 output spd sensor ckt . the car will go into first and very intermittently go into 2nd and 3rd, reverse is totally dead! anyone have any ideas? any help will be appreciated.
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#2 Old 02-26-2009, 01:20 AM
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rdavis55
Well, thats now 4 of us with the same issue in the one forum!!
Your no doubt talking about this thread
Mine is similar to yours, in that if I wait long enough [5 - 10 secs or so] it will eventually change out of first, but go straight to third and with a thump that threatens to dismember the front end!
I'm going to do some tests on this one to try and determine if it's electrical or mechanical.
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#3 Old 02-26-2009, 10:57 PM
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geovair66
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Unhappy

Sounds good, please let us know what you find out (electrical or mechanical?) I'm at a loss, Thanks
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#4 Old 03-05-2009, 04:47 PM
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geovair66
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Hey again all, I removed the transmission pan this afternoon to check for metal, sludge etc... and found nothing but dirty fluid. The fluid doesnt have a burnt smell either!! any thoughts? Thanks in advance
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#5 Old 03-12-2009, 11:14 AM
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geovair66
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Hey all, I think ive found a huge issue solver!!! The pan did actually have some debris in the bottom after all. I found what are the remnents of a thrust bearing, and in turn I disassembled the clutch packs and walla!!! , found the splines ground off of the nose on the kickdown drum. Took a bit to pull it out, bit Im thinking this may be the culprit for many who have had similar problems. the bearing pieces I found go inside the drum (I think?). I hope this helps at least a few of you out there. Ill keep you posted on the reinstallation progress.
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#6 Old 03-14-2009, 02:13 PM
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rdavis55
Good find! Keep us posted.
I was homing in on the kick drum/band/servo as well, but have not had a chance to investigate as it's actually my sister-in-law's car and she needs to keep driving it to get to work.
Not sure it will be exactly the same issue with this one, as I have had the pan off and there wasn't any debris in the bottom + my symptoms a a bit different to yours.

Did you remove engine with trans or just the trans only?
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#7 Old 03-14-2009, 05:41 PM
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geovair66
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trans only buddy! was a fairly easy job. just looking for parts now.
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#8 Old 03-22-2009, 02:08 PM
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geovair66
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Okay folks, I put the Elantra back together and it works fine other than the p1709 code still haunting me!! I'm getting a new kickdown servo switch tomorrow and that hopefully should take care of it.If not I'm at a loss. The car intermittently shifts rough from 3rd to 4th. It has the correct voltage at the plug. It was an interesting experience as I learned alot. I'll keep you all posted on how the switch works out! Oh yeah I have the Hyundai p/ns for the kickdown drum (shell), rear bearing assy which I found pieces throughout the tranny, pump to body paper "c" shaped gasket and the torque converter to pump lip seal if anyone is interested. (2000 Elantra).
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#9 Old 03-22-2009, 02:48 PM
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rdavis55
Excellent! I'm close to being able to pull this one apart. Will post back on my findings.
Did you use a scanner to get the code, or by multimeter method? Damned if I could get the multimeter method to work, I had a continuous pulse train with no link and no pulses at all with the link in???
I simulated a fault by unplugging the temp sensor [ that little wire clip is a cow!!] and the engine check light comes on, so......??
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#10 Old 06-29-2009, 02:45 AM
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henalvfa
QUOTE (Rove @ Mar 22 2009, 02:48 PM)
Quote:
Excellent! I'm close to being able to pull this one apart. Will post back on my findings.
Did you use a scanner to get the code, or by multimeter method? Damned if I could get the multimeter method to work, I had a continuous pulse train with no link and no pulses at all with the link in???
I simulated a fault by unplugging the temp sensor [ that little wire clip is a cow!!] and the engine check light comes on, so......??

Hey just go to ebay, you can get code readers from the 20's up to the 100's....!

This is great...

You can get the tranny rebuild kit in www.rockauto.com...

Keep us posted! Great thread!!
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