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Discussion Starter · #1 ·
does anyone else have this problem with their 2002 accent? when it's been sitting, it shifts slowly and won't go into 4th at all. even if i drive for an extended period of time, it seems to be stuck in 3rd. however, if i shut the car off and start it again, it's fine. i replaced the pulse generator, but i'm still having the same problem. any suggestions?
 
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Originally posted by maggie78@Nov 22 2004, 09:04 PM
does anyone else have this problem with their 2002 accent?  when it's been sitting, it shifts slowly and won't go into 4th at all.  even if i drive for an extended period of time, it seems to be stuck in 3rd.  however, if i shut the car off and start it again, it's fine.  i replaced the pulse generator, but i'm still having the same problem.  any suggestions?
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If it is stuck in third everytime, that means the TCM has gone to Fail-Safe Mode...this is how it is designed if it detects a fault. It does not have to be the Pulse generators to cause this.....I am assuming you replaced BOTH Pulse generators....Also typically the Trans Temp Sensor will be at fault...is the Check Engine Light on? have you tried to access the on board computer to determine what "codes" the TCM or ECM has set? try this free access to Hyundai web site for more info on your car...http://www.hmaservice.com and when you are on this site go to Service Information and use the Model, year and Engine as the search criteria..It would be helpful if you gave us more info on ...has the trans oil been changed recently>>>>any electrical work done recently>>>all these are pertinent info that will help some of us here to help you better....
 

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Does the car sil shift from 1st through to third?
Just won't shift into 4th?

Have you checked your transmission oil level?
Do you know how to check yor oil level?

There is one thing that you a try to cary out yourself, however it can be quite dificult.
It is probably best if you ake it to your local dealer and ask them to do it.

Just reply to the other questons first and we will go from there.
 

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Sorry, but what have you done to your accent????

It seems as though you have excessively accelerated when the computer is cold, no matter what others may say but forcing a computer system when cold is asking for trouble. Others will say it shouldn't matter, but only the creator of the software will know how it operates. I'm no expert, but hyundai's of today are fairly rugged and reliable, most of the time faults are caused by the user or third party...

Note: recently a mate of mine's mitsubishi mirage/lancer transmission faulted, the dealer moved the Transmission power switch to the level and so far it's been great, Good Luck.. :)
 
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Originally posted by johnc@Nov 23 2004, 05:33 AM
Sorry, but what have you done to your accent????

It seems as though you have excessively accelerated when the computer is cold, no matter what others may say but forcing a computer system when cold is asking for trouble. Others will say it shouldn't matter, but only the creator of the software will know how it operates. I'm no expert, but hyundai's of today are fairly rugged and reliable, most of the time faults are caused by the user or third party...

Note: recently a mate of mine's mitsubishi mirage/lancer transmission faulted, the dealer moved the Transmission power switch to the level and so far it's been great, Good Luck.. :)
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I am lost here......what has the trans being cold have to do with the Computer being "cold"....these TCM's and PCM's ARE built to operate at extreme temp's....this has no bearing to that persons failure in the trans.....
 

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lets first wait for the answer, if the CEL is on.
Since the PG-assy was replaced by the dealer (2002 model is still under warranty), there must have been a code in the TCM, and if the tranny goes into fail safe, then the CEL should be on .
 

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Discussion Starter · #7 ·
Originally posted by duke@Nov 23 2004, 07:30 PM
lets first wait for the answer, if the CEL is on.
Since the PG-assy was replaced by the dealer (2002 model is still under warranty), there must have been a code in the TCM, and if the tranny goes into fail safe, then the CEL should be on .
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the codes were all reset by the dealership when i first started having this problem.... they checked the transmission fluid, but didn't flush it. the car goes from 1st to 3rd with no problem, it only happens when going from 3rd to 4th. also, if i shut off the ignition and start it up again, there is no problem.

i have driven the car a lot, i commute quite far to work, and so i've put 110000 km on it in just over 2 years. this is the first problem i've had with my accent, otherwise it's been a great car for me.
 

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Discussion Starter · #8 ·
Originally posted by equus@Nov 23 2004, 12:19 AM
If it is stuck in third everytime, that means the TCM has gone to Fail-Safe Mode...this is how it is designed if it detects a fault. It does not have to be the Pulse generators to cause this.....I am assuming you replaced BOTH Pulse generators....Also typically the Trans Temp Sensor will be at fault...is the Check Engine Light on? have you tried to access the on board computer to determine what "codes" the TCM or ECM has set? try this free access to Hyundai web site for more info on your car...http://www.hmaservice.com and when you are on this site go to Service Information and use the Model, year and Engine as the search criteria..It would be helpful if you gave us more info on ...has the trans oil been changed recently>>>>any electrical work done recently>>>all these are pertinent info that will help some of us here to help you better....
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the check engine light is not on, and there hasn't been any other electrical work done recently.... the transmission oil hasn't been changed recently, just checked out by the dealership....
 

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The CEL may not always come on in the event of a trans problem.

We have had quite a few vehicles come in with trans problems where the CEL doesn't come on.
Check your oil level.
However like Duke said, if your CEL does come on, then take yourself to your nearest dealership for a code check!
 

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The check engine light will not come on in this case as the transmission is not in fail safe mode, the software is interrupted. Have the dealer move the Transmission power switch to even out the gear change. My mate took his mitsubishi to two tansmission specialist with no luck, took the car back to the dealer, and they solved his problem. Your software controls how the car functions if the ecu picks up an error signal then the rest of the vehicles integrated circuit softare will be interrupted. If it were an oil issue, then why is it only at third to fourth and not second to third?? My old excel transmission used to slow change at third to fourth, Hyundai Australia had the looms replaced, and the same problem occurred, the pulled the transmission out and replaced with new, and the problem was solved. In the accent the chip can be removed, or the chip reprogramed.
 

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maggie 78, does the problem only occur after it wants to shift into 4th gear ???
when this happen, is the tranny still shifting into the other gears ???
please try to give me detailed info till the problem occurs.

Please PM me your cars VIN#

duke
 

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Discussion Starter · #12 ·
Originally posted by johnc@Nov 25 2004, 02:15 AM
The check engine light will not come on in this case as the transmission is not in fail safe mode, the software is interrupted.  Have the dealer move the Transmission power switch to even out the gear change. My mate took his mitsubishi to two tansmission specialist with no luck, took the car back to the dealer, and they solved his problem.  Your software controls how the car functions if the ecu picks up an error signal then the rest of the vehicles integrated circuit softare will be interrupted. If it were an oil issue, then why is it only at third to fourth and not second to third?? My old excel transmission used to slow change at third to fourth, Hyundai Australia had the looms replaced, and the same problem occurred, the pulled the transmission out and replaced with new, and the problem was solved. In the accent the chip can be removed, or the chip reprogramed.
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i've taken it back to the dealership tonight so that it can sit overnight there and they will check it in the morning. i have talked to a couple of other people who mentioned that it might be a computer problem with the car, because it is only from third to fourth. i will find out in the morning what they say about it.
 

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Discussion Starter · #13 ·
Originally posted by duke@Nov 25 2004, 09:22 AM
maggie 78, does the problem only occur after it wants to shift into 4th gear ???
when this happen, is the tranny still shifting into the other gears ???
please try to give me detailed info till the problem occurs.

Please PM me your cars VIN#

duke
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it only occurs after a cold start, and the engine shifts into 1st, 2nd, 3rd and then sounds like it's about to shift into 4th, but never does. in this case, it shifts into all the other gears, but won't upshift to 4th. it feels like the overdrive isn't on... even though it is. when it does that, it won't upshift no matter how long i drive it, and the problem is only fixed when i shut the ignition off and start it again.
 

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Also, when you take the car there, get them to write down the trouble codes that they extracted from the system.

Make sure you ask them this before they begin to work on your car otherwise they may delete them. Once deleted they won't be able to tell you what codes they erased.

Thanks
 
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