Sonata I45 (LF 2015+) :: Torque Converter Locking Up So Early - Shuddering And Rattling Transmission
Nov 19, 2015
The problem is that it appears the torque converter is locking up so early even right after getting into second gear at speeds between 20km/h and 40km/h. This causes shuddering/rattling coming from under the hood. If I am not mistaken a torque converter should lock up at speeds 80km/h+. I've never seen this behavior on any car before. I'm not sure what kind of damage is being done either by all this shuddering and rattling going on with the transmission. I feel that this should be something that needs to be addressed via some software update. Is there any software update in regards to this issue?
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I have a 2007 Sonata, performs flawlessly, my wife's 2011 Elantra, not so much. We've had issues with her car from the get-go. The Elantra has 32k miles on it. About 15k miles ago the dealership reprogrammed the transmission. Problem seemed to be fixed, to a degree. Hiccup here and there.
Last night when my wife came home from work she said it was shifting hard. I just shrugged it off. We came in to town, about 5 miles down a busy highway. 55mph, no problems.
Car sat for a couple hours. We got in the car to come home, buttery smooth first few shifts to 35 mph. Car had probably been running about 5 minutes. Pulled out onto highway, shifts 1-2 fine, 2-3 holds about 2500 rpms, won't shift, won't shift, BAM! repeat 3-4, and I believe 4-5. I was so shaken up I didn't count. I pulled off and took the back road and it continued to do it for about 3 miles. It almost feels like the torque converter is locking up. Someone mentioned a transmission temperature sensor, but that is only in Sonata's, no one has seen it in an Elantra.
By the time we got home, the car was shifting normal. This morning I get in it because now my wife won't drive it, and it works fine. Works fine all day.
Go into dealership, they say everything is fine, they called Hyundai, they say nothing wrong, come back when you have a problem.
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Need to diagnose:
- Truck idles a little rough sounds a little like " puff , puff ", when put in reverse - still sounds the same ( looping hesitation )
- When accelerating feels pretty good until about 40-45 then it starts to shake , shudder and loose power. Shakes and shudder pretty violently.
Did a full ATF fluid service - no improvement
Aside from that it does not seem to have any other shifting issues at all. Problem is intermittent. Throughout the day it may run fine, and then at another point in the day it runs like poop when hitting 45+.
Could it be a bad Ignition Coil Pack ? Car has ZERO codes appearing - would either TC or COP set one off ?
Here is a pic of the one COP that I found does have a crack on the top ( passenger side ) - not sure if that could cause the truck to act the way it does.
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I picked up a 2015 gs350 f sport in atomic silver / black. I'm excited to pull out of the parking lot and get on the road! Yeah, not so much. As I take a turn onto the road I notice it's very sluggish, like starting off in third gear sluggish. I eventually get up to speed and wander if the floor mat is stuck under the pedal or something, whatever. anything but the car is broken.
I eventually get up to speed. Everything is fine. I don't accelerate hard because the the car only has 12 miles on it. Otherwise it drives like it should. Off the freeway and at a stoplight with an incline. Start to go, same thing. I pull over, turn the ignition off and back on. Car is fine.
So later that night (43 miles on the ODO) CEL and Trac off lights up. Car will not get up over third gear. Make it another 2 miles home and park it. I'm pretty distraught.
Took it to the dealership, don't know what they are but 2 fault codes came up. One for a shift solenoid and another having to do with the torque converter. Under 100 miles on the ODO!
So I'm with a red ES loaner car. Never seen it on a brand new car.
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Replaced Troque Converter, Truck runs engine runs fine transmission won't shift out of 1st gear.
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I've been noticing this in the past week, when I'm driving about at around 5pm, the headlight would turn on if I leave the stalk on AUTO. Except it's BRIGHT daylight! Sure it's the beginning of sunset and the sun was to my side, but the amount of light is still extremely high. I see no visible difference between it and driving at noon in terms of the amount of light on the road.
Turning the lights off and on again doesn't work...The low beam does not come on when driving in the morning around 8 or noon, only in the afternoon. Even if the sunlight was shining right on the dashboard, the low beam would still be on in the afternoon.
Makes me wonder if this is a sensor calibration issue( I have nothing covering the sensor) or if it's like this by design. Making the headlight turning on extremely early so that Hyundai doesn't get sued by someone because the light "came on too late" and caused an accident. This is extremely annoying as it uses extra power to run the lights unnecessarily, and not to mention shortening the life of the bulbs. My current work around is just turning on the parking lights...sure the tail are still going to be illuminated, but better than the low beam at least.
I do want to keep the DRL on, but there is no "DRL on" option on the stalk, only "DRL off" to shut everything off. If I want DRL, but not automatic headlight, there is no way to do it, except turning on the parking lights instead.
I don't recall this issue on other brand vehicles I have owned...and about 95% of the vehicle I see coming the other way, under the same lighting condition, is running on DRL only(Assuming they have Auto headlights). What's the trigger condition for the low beam for hyundai..?
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So here I am driving away for the fuel station and then the tranny tries to shift and I hear and feel a loud clunk followed by no power. I have had no previous issues with the tranny but I believe it has not had any previous work done. The truck is an 02 7.3L with 200500 miles. I am guessing the torque converter is the culprit it still had very little forward motion when I tried to move the truck didn't matter what gear I was in. I intend to have the tranny beefed up but don't intend to go crazy. I do tow an 11,000 lbs TT on a fairly regular basis and have a PHP 6 position switch which can be set for as much as 120 hp from stock but don't do any hot rodding. I am mostly just looking to beef it up and provide as much strength towing.
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I love the car and SCC is one of my favorite features. I've had good experience with the SCC most of the time - if car in front of me is moving and then stops, it reacts well. (Also was pleased to learn I can resume SCC from a stop by just tapping the accelerator, no need to hit resume like the LCD screen implies).
However, the one situation is when I'm going like 55mph, and up ahead there's a car stopped completely. I'll see a thing on the dash that the SCC recognizes there's a car ahead, but it won't hit the breaks till the last minute. Truthfully, I end up hitting the brakes myself in most of these situations.
I've got the longest distance selected (though i've tried it with short following distance too) and my car is a Limited 2.4 GDI.
SCC stops fine if slower car ahead stops. Seems a little risky when car ahead is already stopped (waits till the last second for brakes?).
I've also tried changing the setting for cruise control response from "normal" to "fast"...maybe i'll try "slow?"
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My 94 e4od does a few things. It doesn't seem to engage positively all the time. It doesn't grab well in manual 1st, but does in D. I had the FIPL reset at the dealership and he said he never saw a FIPL needing to be set so far one way. Also it has overheated a few times. Either the TC doesn't lock up correctly or its just not all the way in gear (if thats possible) I changed the fluid but it did it again recently.
Also the speedometer is jumping around like a nut case, the abs light is on...sometimes, when I have the headlights on and put my right turn signal on it feels like the TC locks up. Oh, yeah the lights are all jacked up in the back. The left turn signal light also has a small amount of voltage when I put the headlamps on (my test light lights up dimly) I thought it might be the multi function switch so I removed that and cleaned the connections. Nothing changed but I dont think that was it. I have troubleshoot this all day and I don't have too much of a clue to whats going on.
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I have a f150 2002 with a 5.4 and 4r100 (yes im sure), and a week ago my torque converter started getting stock (locked) when i came to a stop making the engine stall (it took a couple of minutes before my engine got warmed up). I checked the codes and got 0740 and 0743 which relate to the tcc solenoid malfunctioning. To make sure the tc wasn't physically stuck y cut the purple wire that signals the solenoid to lock the converter, the truck ran fine and as expected the tcc never locked.
So I thought I narrowed it down to the solenoid pack, which I bought (300 bucks ouch) and changed it yesterday. Today again the same thing started happening and the truck is throwing me the same codes, so I am a bit frustrated. I don't wanna go ahead and buy a torque converter without knowing the real cause, what could it be? I didn't see any melted wires down there but could my long tubes be shorting that wire out randomly in an unseen place? or could my tc be bad?
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I have a 2001 Montana with 140,000 miles on it. I bought it used five years ago. The transmission is going out. The shop did a scan and found the torque converter clutch is sticking on. What this is? Should I make the repairs or ditch the van?
Good points: four new tires in December 2013; body is great; and minor maintenance repairs.
Bad points: the air conditioning is broken and the heat is forever terrible.
The van is currently at my regular shop and they do not do transmissions so I do not have an estimate or more information about the problem.
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I was driving my 7.3 down the road and it started acting like the trans was slipping, it revved up and tried kicking down a couple times and when I slowed down and went to speed back up it just had no power coming through the trans to the wheels it just revved. I put it in neutral and it idled up for about 5 seconds. I put it in park n shut it down. I fired it back up after looking everything over and it moved about half mile down the road and no power to the wheels again. The trans is full of fluid, is there a sensor that could of went bad or just the torque converter or the entire thing shot? Only owned my truck 6 months has a trans and motor swap already from previous owner. 180k on current motor n Trans. 382k on my truck. t6 4" turbo back banks exhaust only mods I know of.
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My 1996 F150 has developed a strange vibration and nothing i have done seems to work. once it has shifted into drive it will shutter or vibrate under a light load. if i let off throttle or give it more throttle it stops. Seems to be most noticeable from 30-55 mph. I am thinking it is torque converter locking and unlocking but not sure. if it is torque converter does the converter lock and unlock electrically? if so where is the sensor on the bellhousing? I have looked around and cannot find anything as i was going to unplug it to see that was indeed the problem. its a 4rw70 tranny.
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I recently bought a 2001 x w 145,000 miles. The transmission was making a whining noise when i bought it but it still shifted smooth and ran great. The truck has been serviced by the local Ford dealer its entire life with dozens of routine maintenance performed. With 145,000 miles should I wait for the converter to go out and just install a new transmission. It only gets drove on the weekends to go to the lake.
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Before taking to Ford or random trans shop just yet, looking for diagnosis recommendations (or an item or two to replace DIY). Torque converter bolts are broken or TC itself? Solenoid (but would expect a code)?
Issue: Doing 45MPH at the tail end of the 6hr drive, then engine simply revved and coasted to stop. No lurch, pop, noise felt like a manual transmission popped out of gear and into neutral. When the shift to R/D/L/4x4 hi/lo, can feel transmission engage. Engine revs and 'slips' are the best way to describe (no abnormal noise otherwise)I can feel it applying a very slight load (doesn't move, but can feel it try). No warnings/issues leading up to this in the 6yrs and 100k miles I have owned (has 174k miles now). No leaks/visible issues underneath.
Fluid is not burnt, the level is ok. Replaced (no flush) Mercon SP fluid at 125k when bulletproofing. No codes, including hard codes. Trans temp was 165 before/after, which is normal. All engine temps/values on Scanguage normal. SCT tune since bulletproof (though don't abuses it), set back to stock. Also disconnected pos/neg and touched both sets of cables together for several mins.
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Is it normal for the car to shudder when downshifting at low speeds. I have had the computer "reset" once before when this happened and the dealer said I needed to drive more aggressively so the computer would "learn" my driving habits. I honestly am more interested in good gas mileage, so consequently I do not blast off from stops. Service manager said I needed to push it a little harder. Is this BS or is there some software adjustment that the dealer can make?
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I have noticed lately, when the car is hot, while pulling into my quiet garage, and even when the car is in park, engine running --- hearing some clicking / ticking coming from, or near the Catalytic Converter.... It sounds as if a small piece of metal is rattling inside with the flow of air... It stops clicking once the engine is turned off.
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I just purchased a used 2016 Hyundai Sonata SE. Inspected the car from top to bottom upon purchasing but failed to check one thing. I have discovered the horn does not chirp upon locking (pressing fob lock button twice). The system panel shows the car has this feature and the box is checked to do so. The doors do lock and the lights do blink. The panic button when pressed on the fob also makes no sound. Again, the lights blink on the car itself when the panic button is pressed. I have researched and have came up empty.
I can not seem to locate the hood switch or sensor on the car where older models seem to be. Dealer says it is in the latch on 2016's but I am uncertain this is correct as I called several dealers and got different answers each time. They all want me to bring the vehicle in but run the risk it is not covered under warranty depending on the issue. Car has 39K miles. Horn works fine. Carfax was clean so supposedly accident free. I'm focused on the hood switch because most of my research pointed in this direction.
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I came across this issue in my Sonata Turbo. At 5K+ RPMs, I can hear a sort of gurgling/rattling sound coming from the engine. Its concentrated on the driver's side behind the firewall. It goes away immediately once I drop below 5K RPMs. It isn't too loud; I didn't notice it up until now because I usually have some music going.
This is my first Turbo that I have ever owned. That would make sense because it only engages at high RPMs. My car has 3K miles on it. Been loving it so far!
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When I'm driving i have noise that's driving me batshit crazy. Sounds like a rattling. It happens when there is bass or bumpy road. Door noise or headliner ....
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I just bought my brand new 2015 Hyundai Sonata 2.4L SE 3 weeks ago and have put 4000kms on it so far and from last week I am getting a rattling noise from just behind my steering wheel while going over washboard surfaces every time. Feels like something plasticy is loose around the upper steering column which rattles every time I go over a washboard surface. My university campus has a lot of rumble strips to slow cars down and that is where I noticed this noise very clearly.
I have taken my car to the local dealer and the mechanic there have acknowledged the problem after comparing the noise with a new car there. He tightened some bolts around the lower steering rack apparently but the problem is still there. He says to bring the car in after the problems gets significantly worse because it is still not severe enough for him to diagnose it and find what is causing it. I do not know much severe I need to the let the problem get before they do something about it. The dealership still has the ticket open for me; I will probably try to visit them next week again.
This thread more or less describes the problem I am having : Steering wheel noise over bump .....
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