- #89 of 113
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Re: 1999 Hyundai Elantra transmission issue [grump1]
by backy
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Mar 25, 2009 (8:18 pm)
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Replying to: grump1 (Mar 25, 2009 6:24 pm)
Unfortunately, your mechanic was wrong. If I were you, I'd show him some posts like this from the Web and demand he pay to repair/replace the transmission that he ruined with the Dexron III fluid.
http://www.hyundai-forums.com/t5918-automatic-transmission-fluid-type.htm
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- #90 of 113
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Re: 1999 Hyundai Elantra transmission issue [bhmr59]
by bigwillie0826
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Mar 29, 2009 (11:10 am)
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Replying to: bhmr59 (Mar 25, 2009 6:08 pm)
It was doing this before I changed the fluid and filter. That's specifically why I did it. I had this same problem with my 1989 Chevy Beretta GT and changed the fluid and the filter and it fixed it but unfortunately it didn't work on my Elantra.
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- #91 of 113
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Re: 1999 Hyundai Elantra transmission issue [tenpin288]
by bigwillie0826
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Mar 29, 2009 (11:16 am)
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Replying to: tenpin288 (Mar 25, 2009 6:25 pm)
I do have a small exhaust leak that I can't seem to locate but the rest of the system looks fine. Now I was thinking it might be a blocked Catalytic converter so a friend of mine told me to run it at night until its hot and look to see if the converter is red or glowing. He said if it has a restriction that it would overheat and the metal would start to glow when it gets hot but I havn't noticed any redness or glowing when I look at it in the dark. Now if I try what you said and disconnect it and drive it uphill what am i listening for and i disconnect it above the converter right? But wouldn't this cause the vehicle to run poorly due to the O2 sensors not getting the correct signals?
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- #92 of 113
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Re: 1999 Hyundai Elantra transmission issue [bigwillie0826]
by tenpin288
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Mar 29, 2009 (11:51 am)
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Replying to: bigwillie0826 (Mar 29, 2009 11:16 am)
You would not really be listening for anything. The idea is to open up the system and see if excessive backpressure is the cause of the performance decline. Doing so will make it loud and possibly dangerous from exhaust fume infiltration into the cabin, so I do recommend doing so only with open windows. As far as the O2 sensors, they would not get correct info but that should only be a minor problem. If high backpressure is the cause and you open up the exhaust, the performance increase should well outweigh any decrease from incorrect O2 sensor readings. 
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- #93 of 113
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Re: 1999 Hyundai Elantra transmission issue [tenpin288]
by bigwillie0826
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Mar 31, 2009 (9:04 am)
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Replying to: tenpin288 (Mar 29, 2009 11:51 am)
Well I found the exhaust leak. My damn manifold is cracked in 2 places. Looks like I'm heading to the junk yard. $225.oo for a new one is just too much lol.
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- #94 of 113
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Re: 1999 Hyundai Elantra transmission issue [bigwillie0826]
by bigwillie0826
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Apr 02, 2009 (9:35 am)
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Replying to: bigwillie0826 (Mar 31, 2009 9:04 am)
well the car goes into the dealership on tuesday. I found that the manifold was recalled and i can now get it fixed for free. my wallet is sooo happy lol
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- #95 of 113
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Re: 1999 Hyundai Elantra transmission issue [backy]
by joegiant
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Jul 15, 2009 (2:01 pm)
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Replying to: backy (Mar 25, 2009 8:18 pm)
Well backy to answer your question at the very beginning of this thread, after reading all 94 posts on here, the majority of which suggest problems with the automatics, I'd say 5 speed MANUAL! 
Or does the '09 model have a much improved transmission? As always, TIA for your opinions.
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- #96 of 113
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Re: 1999 Hyundai Elantra transmission issue [joegiant]
by backy
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Jul 15, 2009 (2:12 pm)
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Replying to: joegiant (Jul 15, 2009 2:01 pm)
The original question was about someone who might have ruined their Elantra's AT by using the wrong tranny fluid. That is not the fault of the transmission.
The AT in the Elantra has improved over time but it's still a pretty basic four-speed. I am hoping Hyundai will put a more modern AT (e.g. 5AT Shifttronic like the Forte has) for 2010.
My first Elantra, a 2001 GLS, had the 5-speed. I liked it a lot, until my oldest son, helped by his mother, trashed the clutch ($1300). Also traffic is getting worse every year. So I think I'll stick with ATs, at least until I can be sure I'm the only person in the family to drive it. For instance, my Rabbit's 6-speed Tiptronic is quite a nice unit, for an automatic.
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- #97 of 113
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Hey, backy...
by iluvmysephia1
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Jul 16, 2009 (3:36 pm)
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ya ever get caught in a traffic jam while Prince's entourage passes through? 
Yep, Hyundai needs to develop the 5AT Shifttronic for their new world order Elantra's like Kia is plopping in to their Forte's, exactly right.
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- #98 of 113
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1996 elantra
by moparman5
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Jul 17, 2009 (7:50 am)
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We put an automatic from 1 car into our car. It worked fine in the other car. Now it has a very good reverse and at times it has no forward. When we put it in drive it seems to work fine for 10 to 20 minutes then seems to just disengage when it wants to. On jack stands it will shift just fine then when you stop and put it in park and then put it back in drive it will start to move the wheels and then sort of clicks and stops moving. Any Ideas????? This thing is driving us nuts. We have changed the fluid and filter with the right fluid. The fluid that we drained was red and had no shavings or residue in the pan. We changed the two sensors on the end of the transmission one on top and one on bottom.
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