Accent LC (2000-05) :: 2001 1.6 Auto - Transmission Thump From 1st To 2nd But Only When Cold


Dec 28, 2011

I have a 2001 Hyundai Accent 1.6L GLS with auto transmission.

Recently, I've noticed a hard "tump" in the mornings when it auto shifts from first to second gear. It is loud and VERY noticeable. Aftera bout 7-10 minutes when the car warms completely up, it runs fine with not thump.

I've searched the forums for this and have found no answer.

It still runs fine but the morning "thump" scares the crap out of me and startles me every time.

I purchased the vehicle used a few months ago, it has 175,000 km on it. I don't know the history of the transmission but the car seems to be in really good shape otherwise...

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Accent LC (2000-05) :: 2001 Auto-transmission Noise / Vibration

I have a 2001 Accent with a auto-transmission. The engine is a 1.6 and the car has about 100,000 miles on it. I had it since about 5 years with about 48,000 miles.

While driving cross country a couple years the car developed a whining noise at about 25 mph. As speed is increased, the whining became louder. I have driven it like this ever since, moderately, never pushing it. Starting a couple months ago, the noise has become louder at 40 to 45 mph and there is considerable vibration.

I know the tranny in this car is known for many different problems. I'm just wonder what the thoughts are of others more familiar with this transmission as to what could be the issues ( a certain bearing going bad between gears?, maybe not a tranny issues ...just random ideas on my part ).

BTW, I have never had an error code develop for this transmission.

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Accent LC (2000-05) :: Thump When Downshifting And Come To A Stop

My nice little 2002 GL 1.6 has 160K+ on it. Lately, when I come to a stop, I get a thump when she downshifts. I don't know which gear exactly, but it happens when the car reaches 10 MPH and below, so maybe when it goes into first? It is just as the car stops, it seems.

More recently, it seems as if when I get just about stopped, it feels as if she completely disengages from drive and goes into neutral. But it doesn't actually do that, she is fine when I take off. She upshifts just fine, it's just that last little bit when coming to a stop.

I have never had the transmission messed with very much, but I know it was serviced a few years ago. I did add a little fluid a few weeks ago after I checked it, and I was very careful to purchase the exact correct fluid.

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Accent LC (2000-05) :: Thump But No Click When Key Turned In Ignition

So the lights work fine don't dim when trying to start the car. when you turn the ignition there is one thump but no clicks or revs like belts are moving. The battery is fairly new less than a year and as mentioned all electric things seem to be fine. I was also told by the tow guy that it was the starter but just want to be sure.

Advanced auto states they will test it but I need to get it out of the car. Only problem is I cant find it. I've looked at the manual online and seen numerous diagrams but I don't know the physical location of it do I need to get under the car to remove it? Do i need to remove anything to get to it? I haven't seen any live pictures showing where it is and I've googled it for a while now.

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Accent LC (2000-05) :: 2001 - AC Won't Blow Cold Air

I took my car in for an oil change a few months ago when I was told the belt going to my a/c compressor was missing. It must have snapped off some time in the winter. I got the belt replaced and when I go to turn on the a/c I can hear it engage but the air that comes out is no colder than just having the vent on. A friend told me I just need to recharge the refrigerant.

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Accent LC (2000-05) :: 2001 GL Transmission - Reverse Gear Went Out

I have a 2001 Hyundai Accent GL the reverse gear went out but all the forward gears work. Ive been told that I need a new transmission. I found a great deal on a transmission from a 2007 Hyundai Accent. Will this transmission work in my car?

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Accent LC (2000-05) :: 2001 - OD Transmission Not Shifting Above 3rd Gear

I am having a few issues with my 2001 accent. I bought this car for around 500 bucks after my friend hit 3 deer with it. At 101,000 miles the transmission went on it and he had it replace with a new one. At about 113k he hit his third deer and parked it. I bought it off him a few years later and its been running great. It died on me one time and it was the crank position sensor. Now I have about a 156k mile on it and it will not go into overdrive.

I have gotten mis fire codes, I know it needs new O2 sensors, and also P0733 Gear 3 Incorrect ratio. The button on the shifter does nothing, If i press it on or off the light does not come on on my dash. I noticed it was not going into OD this last winter if i dropped it into low and shifted to drive it would no longer go into overdrive until i placed it in park and then drive again. Ive been searching everywhere for an answer I was reading one post that it could be the TPS sensor causing issues but i haven't had time to check the voltage.

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Accent LC (2000-05) :: 2001 - Transmission Sometimes Downshift From OD To 3rd Gear And Stay There

I have a 2001 Accent with a 1.6. This car is mostly driven by my daughter so I'm translating the symptoms as she has described them to me. The issue appears to be this - when driving at highway speeds the car will sometimes downshift from OD to 3rd gear and stay there. When the problem first started, she would pull off the highway, turn off the car and then restart it - this would appear to "fix" things temporarily, however, as time went on, it would work up to (and including) 3rd gear and not go into OD after a restart.

I've reviewed the various threads on this site describing the 4th gear problem prevalent in the Accent, but in each case that was posted, there was a check-engine-light or at least some diagnostic codes stored that one could refer to - I've scanned this car every time she's been home and there are no DTC's. Should I assume that this is the standard "4th gear" issue and take the pan off for investigation or could this be some other issue such as the speed sensor causing the transmission to limit itself to a max of 3rd gear?

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Accent LC (2000-05) :: 2001 - Transmission Physically Downshifts Or Locks Up In 3rd When Let Off The Gas

Car is a 2001 Accent 1.6L 4 door automatic with about 130,000 miles on it.

Transmission shifts correctly into reverse, drive, neutral as well as manually shifting into 2nd and 1st. When in drive I will accelerate perfectly through 1st gear, shifts smoothly into 2nd gear then the problem arises. The car will shift ok into 3rd, but if I let off the gas to coast to a light or a corner, etc, the transmission physically downshifts or locks up in 3rd (like driving a stick, ie the car has drag like the converter is locked instead of freely coasting). It feels like 3rd gear but could be 2nd. When I go to accelerate again without coming to a stop the car has this same feeling of drag with no power and speeds up very slowly (almost like i am pulling something behind the car or am in a gear that is too high). If I give it enough gas to force a downshift it really slams that downshift. While the car accelerates through the rpm range after this downshift it will rev past the normal up-shift rpm until it finally slams into the higher gear. Or if i hold the gas steady at the higher rpm the car will suddenly slam into the higher gear. after all of this nonsense the car drives perfect through to OD. The problem is much worse going uphill and is consistent every time it is driven.

Also, sometimes the car would shake and vibrate when hitting the gas during this "drag feeling" until i let go and did it again. This is pretty random compared to the main problem but also seems to happen while the car is in 2nd or 3rd. This has been happening for about 5 months now and as far as i know was sudden. And on another note it suddenly was shifting fine the other day while driving it. I haven't driven it since then but this completely stumped me, as most problems will do when they magically disappear.

There is no check engine light, OD works fine and the car does not go into the safety mode where it will shift to 3rd gear on the highway. It's city driving that is the real headache (2nd and 3rd gear difficulties). Would the pulse generators cause this? bad TCM? i haven't scanned anything yet but will be within the next few days(at pep boys or similar) as well as ohming out pga and pgb. i have found resistance readings for pgb but nothing for pga, what should pga read? fluid is also within acceptable amount and color.

My initial thoughts were dirty or stuck solenoids/valves in the valve body and i was going to do a filter and fluid change with a quick valve body cleaning and check. But after researching on here I am starting to think it may be electrical. The only reason I put my scenario up is because it seems that everybody else who is having a similar problem is also having the "no reverse" or "shifting into 3rd on the highway" problems while i am not. On a random note, for my own piece of mind, how do the pulse generators work? Are they just reading ticks on a gear cog in the tranny or something? fluid flow?

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Accent LC (2000-05) :: 2001 GL Transmission Shifting Hard Into Drive

I have a 2001 hyundai accent GL the transmission has started shifting hard when it shifts into drive. It shifts fine and smooth from first to second but when it shifts into drive it hits drive hard and sometimes it acts like it doesn't want to shift and if you let up on the gas it will go ahead and shift, but when it shifts to overdrive it seems fine but hits hard when it down shifts back to drive. Also I have noticed a couple times when it goes to shift into drive the engine seems like it revs up some but when you let off the gas it goes ahead and shifts.

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Accent LC (2000-05) :: 2001 GL Won't Turn Over / Buzzing Noise Coming From Beside Cold Air Intake

I have an 01 Accent GL 1.6L. It will not turn over. Battery, terminals, and wires are all new. Alternator is also good. There is a buzzing noise coming from beside the cold air intake. I'm not sure what part that is. The part that is buzzing is where the cam position sensor is connected to. It also has wires that run into the firewall.

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Accent LC (2000-05) :: 2001 - Transmission Goes Into Fail Safe Mode / No CEL Codes

2001 Accent, 1.5L Automatic with OD, 263,000 km

Transmission goes into Fail Safe Mode but the CEL does not light up and code reader shows no codes. Shifts fine in town,1-2-3-4...4-3-2-1, but on highway when going up inclines (steep), transmission downshifts from Overdrive into 3rd,as i press the accelerator it will downshift into 2nd (as normal), until i reach the top of the incline (3500-4000 rpm) but then as the car levels out on the highway, it will shift back and forth between overdrive and 3rd, (jerky shifting) then finally goes into Fail safe mode, 3000 rpm at 80-90 km/h. Once I shut the car off for a few minutes, the transmission is fine and shifts normally. Fluid levels are good. Why the CEL is not giving code?

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Elantra XD (2001-06) :: Manual Transmission - Thump When Shifting

I've been hearing a quiet 'thump' when shifting. In particular, when first letting up the clutch starting out in 1 but also when shifting between gears when the clutch is fully down such as from 2->3.

I thought perhaps a fluid change was in order since I'm at 110,000 miles. It didn't make any difference. (I used Mobil 1 GL5 which according to independent tests is safe on yellow metals.)

So then I wondered if it's the engine mounts, but I'm not sure what it sounds like when they need to be replaced or if simply shifting between gears while driving as described above would cause a worn one to 'thump'.

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Accent LC (2000-05) :: 2001 GL Started Revving When Driving During Traffic Hour - Transmission Slipping?

I have a 2001 Accent GL 1.6L Automatic.

Yesterday it started acting up on the freeway. I was driving about 50 during traffic hour when it started revving. I got off the freeway and moved to 35mph on surface streets, the revving continued at lower speeds but much worse (4-5k rpms going 10-15mpg). Doesn't seem to do it in idle or park. If i shut the car off it'll drive fine for a while then start acting up but when I was driving, after awhile, it did return to normal.

What could cause the problem? TPS? Transmission? Sensor of some sort?

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Elantra XD (2001-06) :: Engine Light While Driving And 2nd Gear Taking Time Shifting - Thump On Transmission

O.K. first of all I had an issue with the Odometer pointer being jumpy. Sometimes it wouldn't move. Now I replaced the input sensor at first and did not fix the problem. I replaced the output sensor and fixed it. "BUT", Now, I have a problem with the transmission shifting. I get an engine light while driving and the 2nd gear seems to take its time shifting and when it does it make the left side drive shaft kick in hard and spends my wheel to a screeching effect. Plus a thump on the transmission. I rechecked the sensor for connection and reinstalled. Drove the car still have the same issue?

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Accent LC (2000-05) :: 2003 - Auto Downshifting When Let Off The Gas On Highway

Just bought this car and when I am on the highway I let off the gas and it automatically downshifts. no engine light or anything. and when I press the gas again it returns to the proper gear.

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Hyundai - Accent :: 2002 Auto Transmission - Downshifts With A Jerk / Thunk

2002 Hyundai Accent with automatic transmission. This problem happens only if I floor the gas gas on the highway (trying to pass somebody or get out of the way in a hurry) or if I apply too much gas after coasting around a sharp turn. My car will then downshift with a jerk and an audible THUNK!. Right now I just avoid those situations and it shifts through all its gears fine, it only happens when I cause a sudden downshift. Transmission fluid level and color fine.

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Accent LC (2000-05) :: Auto Trans Went Out / No Reverse And The Only Forward Gear Is First

I've got a 2003 Accent and my automatic transmission went out, no reverse and the only forward gear is 1st. Was thinking of pulling it and swapping it for a used, but I have been reading on here the many, many automatic transmission problems of the accent and my next thought was to just rebuild it myself. But now I'm thinking more along the of a swap from auto to manual, as I don't want to have to rebuild a transmission that is only going to have to be rebuilt again anyway. As far as stuff like the clutch pedal, linkages, gear shifter, I can get those pretty easily. Does the Accent have a hydraulic clutch?

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Accent MC (2006-11) :: Auto Transmission Not Engaging At Idle Then Abruptly Chunking Into Gear

My wife has been using her mom's 07 Accent, the mom is 90 and hasn't been incapable of using it for a while now. I did an oil change (without paying much attention) I've never seen this type of car before. Oddly the oil level seemed outrageously over full and still dirty

Then upon driving it the automatic transmission was all wacky, not engaging at idle, then it abruptly chunking into gear...

So I check the transmission fluid level and it's not on the stick. Research here let me know SP-III is what I'd need. Then while surfing a youtube vid regarding this model's transmission it hit me in the face, I'd drained the automatic transmission fluid! Went to the Kia dealer got 3 quarts dumped it in there, drained the overfilled 5.5 quarts of old and new oil rectifying my mistake, which brings me to the reason for this post.

This 2007 car only has 24,300 miles on it and I mistook the automatic transmission fluid for outrageously dirty engine oil! I swear this stuff looks like it's fulla carbon black n burnt up. My question: is it normal for the trans-fluid to have such a degraded appearance in only 25,000 miles?

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Accent LC (2000-05) :: Auto Trans Will Thud When Coming To A Quick Stop

I have an '05 accent with an auto trans. The car only has 25k on it with the original trans fluid. Every once in a while the trans will thud when coming to a quick stop. It actually doesn't even make a noise, but you can feel it going into presumably 1st gear. It only happens when I need to semi-quickly stop for a yellow light etc. right as I'm coming to a complete stop. Trans seems completely fine otherwise. Is this a normal thing? Just an older style/technology auto?

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Camry :: 2011 Auto Transmission Model - Cold Start Low Acceleration

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