1999 Hyundai Accent Overdrive Issues

DOYOULIKEMYBIRD

MEMBER
1999 HYUNDAI ACCENT
4 CYL
FWD
AUTOMATIC
141,000 MILES

Just recentally I was driving down a flat stretch on the highway at about 60mph and suddenally my car kicked into overdrive and wouldn't turn off. I had to come to a complete stop for it to switch back and continued on my way. Later on that day the problem started again were the overdrive kicked back on and wouldn't turn of. I messed around with the overdrive off button and eventually after a little bit of clicking it turned back off. What would be causing this and how can I fix it? Thanks

8 Replies

IMPALASS

MECHANIC
3,112 POSTS

Hello -

To better assist you please tell me the exact model Hyundai. Is it a GL, GS, or L and also your engine size in liter

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Tuesday, February 17th, 2009 AT 2:28 PM

DOYOULIKEMYBIRD

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I have A 1999 Hyundai Accent GL 1.5 liter.
I hope this helps. Look forward to hearing from you.

Ben

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Tuesday, February 17th, 2009 AT 3:10 PM

IMPALASS

MECHANIC
3,112 POSTS

Well Ben

My first thought is to please go to Auto Zone (AZ) or O'Reilly's (OR) and for FREE they can pull the codes to the car. Most important: Once they check your codes, if they find something and you don't get it fixed and need to get back with us, please make sure you tell us exactly what the code was, number and all. Example, if the code was E0568 O2 Sensor bad. Then make sure you give us all of that. While there for FREE also they can bring their tester out and check your battery and alternator.

Let's see if the trans threw a code.

Next - I did attach troubleshooting for the switch.

OVERDRIVE SWITCH

1. Disconnect electrical connector for overdrive switch and note switch terminal identification. See Fig. 26 , Fig. 27 or Fig. 28 . Overdrive switch is mounted on driver's side of gearshift lever.

2. Depress overdrive switch to ON position. Using DVOM, ensure continuity exists between terminals No. 1 and 2. Depress overdrive switch to OFF position. Ensure continuity exists between terminals No. 1 and 3. Replace overdrive switch if continuity is not as specified.

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Tuesday, February 17th, 2009 AT 3:55 PM

DOYOULIKEMYBIRD

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Okay will get that done today and let you know. However last night it happened again and I pushed the shifter over slightly and it switched back to normal drive and when I let go of the shifter it went back to over drive.

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Wednesday, February 18th, 2009 AT 8:14 AM

IMPALASS

MECHANIC
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Ben

Sounds like to me there is something going on there with the switch.....I am sure you think so too.

After checking for codes and once you have that apart to check the connector - really look around to see if it is loose since it doesn't take much pressure to trip it.

Looking forward to hearing back from you.

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Wednesday, February 18th, 2009 AT 9:10 AM

DOYOULIKEMYBIRD

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I have hooked the car up to a computer and no error codes have came up. Upon further trying to solve the problem I have noticed that the overdrive sensor turns on and off in Park, Reverse, Neutral, 2 and L. The only one it has problems with is drive. There is a noticable difference in play with the shifter in drive compared to the other. Is there a nut that holds this in place? Thanks for the help I look forward to hearing from you.

Ben

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Thursday, March 12th, 2009 AT 7:07 AM

IMPALASS

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Hi Ben

I have attached a pic of that area. . .. . ..as you see there is hardware that can be loose. Also the wiring at the switch can be loose also. It is obvious there is something right there that is causing you the problem.

The switch may need to be replaced if you cannot find anything loose etc.

I hope this helps.

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Friday, March 13th, 2009 AT 8:29 PM

IMPALASS

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Hello -

Also, it looks like you may have a recall on your vehicle. The dealer may fix this for free. Please contact the dealer service department, give them the VIN number of your car and have them check on this to see if it applies to you.