Hello, guys! I need help. A couple of weeks ago I bought myself a car that I wanted for a long time and problems immediately began ... Car - 2023 Challenger SXT, brand new. Mileage is now only 600 miles. It all started with a random thud under the driver's seat. When I start the car, sometimes this thud is present and sometimes it isn't. Very unpleasant thing. I thought it would go away, but it doesn't. Also, last week the car randomly shut off while driving. To be more precise - during the start of the driving. I start driving from a traffic light, the car wants to change gear from first to second, as if choking and turning off. After that, I took it to the dealer, but as you can imagine, they don't know what's wrong, because there is not a single error code and the car does not stall all the time. They tested it and the car didn’t die under them. After that, I drove 300 miles, everything was fine, but the thud at startup did not go away. And today the problem with the stalled engine recurred. What are your thoughts on this? To at least give a tip to another dealer to know where to look. Could it be the transmission? Thank you in advance.
YAmac
.... That's very odd, please be extremely careful! And in all reality, Dodge should get you a rental until they get it fixed! And that's funny, there was a mechanic/technician on here not too long ago, that was arguing with someone saying there had to be a code thrown for something different than yours, but yet, yours didn't throw anything. Hopefully he sees this! 🤞
1-800-423-6343. Dodge Customer Care. I’d call them if you haven‘t, and explain it to them. Then I’d call them again. And again. That thing shuts off and causes a major accident or worse, and they’ll be on the hook. Document every single contact you’ve had thus far and all you make upcoming. That situation is not acceptable.
It's the torque converter. No doubt in my mind. You won't find a code in the PCM you have to read the codes in the TCM. Check the freeze frames stored in the TCM.
I agree with all of these, but I also would have left it there and demanded a rental until they could could get you a replacement car like yours.
I don't know if the "lemon law" would apply here...🤷
I don't know if the "lemon law" would apply here...🤷
That’s what I worry about on the 2023
Workers know this is it
Might be out of a job
Last call = last recall
What’s the incentive to put out the highest quality ever?
None…
Keeping my 2021
Workers know this is it
Might be out of a job
Last call = last recall
What’s the incentive to put out the highest quality ever?
None…
Keeping my 2021
Thanks for sharing here.
Reasons it could be the torque converter:
1. The thud is under your seat, about where the torque converter is.
2. A bad torque converter can cause your car to stall...which is why some people call this device a STALL CONVERTER. There is a spec for your car regarding the Torque Converter STALL RPM(typically 1200-2200+...higher rpm tends to be more performance oriented). This is the RPM which your car will stall if you STAND ON THE BRAKE and apply your foot to the accelerator pedal. Your car will stall because at that RPM your TC locks the engine to the transmission...but since you have your foot on the brake the rest of the drive train is not going anywhere so your engine stalls. If your torque converter is locking up intermittently at say 350 RPM, and your foot is on the brake, your engine would stall.
3. The TCM should have a record of any issue with the Torque Converter. But, the TCM can also throw a check engine light. Very odd this did not happen.
One of the ways to diagnose a bad TC is to monitor your TRANSMISSION OIL TEMPERATURE. Someone here will tell you what their happily running V6 Challenger's transmission operating temperature is, and generally yours/a bad one will be 10%+ higher.
This is DEFINITELY a LEMON LAW issue. But the pressure is on you to prove there is an issue with the car. I would recommend getting an old phone and just recording every minute you are driving the car, with a recording of the vehicle RPM and speed. PITA, but, if something horrendous happens to you or a loved one, you will have evidence on your side.
Very sorry for your issues. Please keep us posted, and make sure to try DODGE CARES on this site.
Reasons it could be the torque converter:
1. The thud is under your seat, about where the torque converter is.
2. A bad torque converter can cause your car to stall...which is why some people call this device a STALL CONVERTER. There is a spec for your car regarding the Torque Converter STALL RPM(typically 1200-2200+...higher rpm tends to be more performance oriented). This is the RPM which your car will stall if you STAND ON THE BRAKE and apply your foot to the accelerator pedal. Your car will stall because at that RPM your TC locks the engine to the transmission...but since you have your foot on the brake the rest of the drive train is not going anywhere so your engine stalls. If your torque converter is locking up intermittently at say 350 RPM, and your foot is on the brake, your engine would stall.
3. The TCM should have a record of any issue with the Torque Converter. But, the TCM can also throw a check engine light. Very odd this did not happen.
One of the ways to diagnose a bad TC is to monitor your TRANSMISSION OIL TEMPERATURE. Someone here will tell you what their happily running V6 Challenger's transmission operating temperature is, and generally yours/a bad one will be 10%+ higher.
This is DEFINITELY a LEMON LAW issue. But the pressure is on you to prove there is an issue with the car. I would recommend getting an old phone and just recording every minute you are driving the car, with a recording of the vehicle RPM and speed. PITA, but, if something horrendous happens to you or a loved one, you will have evidence on your side.
Very sorry for your issues. Please keep us posted, and make sure to try DODGE CARES on this site.
2023 should not be doing that and if it is the Dealer needs to check it out fix it under MFG Warranty.
This brought up a bad memory with a BMW 3 series my wife owned. I traveled a lot, and wanted to be sure she had a reliable car and dealership that would take care of her. Well, the car would not start on certain days. Dash would be dead, as if the battery was shot. She took it to the dealer; they could not replicate it. Each time she got a loaner car (BMW). On the 4th time, she called from a Publix parking lot. They came within 20 minutes and had the car towed, and brought her a loaner.
They kept the car for three days, and finally replicated the "dead" issue. Now to the fix. They replaced the oil pressure switch, as a potential for a no start is if the sender detects no oil pressure. It did not explain though the dead interior (no dash lights), nothing.
Finish this story. THEY filed the lemon law. Gave us all of our deposit, and offered an upgraded (in options) BMW 3 series for the price we paid for the one that had the issues.
There ARE auto manufacturers that will back a product. I think your dealer is not one of them. Get in touch with @DodgeCares. You should not have to place yourself and anyone else in danger with the issues you are having.
They kept the car for three days, and finally replicated the "dead" issue. Now to the fix. They replaced the oil pressure switch, as a potential for a no start is if the sender detects no oil pressure. It did not explain though the dead interior (no dash lights), nothing.
Finish this story. THEY filed the lemon law. Gave us all of our deposit, and offered an upgraded (in options) BMW 3 series for the price we paid for the one that had the issues.
There ARE auto manufacturers that will back a product. I think your dealer is not one of them. Get in touch with @DodgeCares. You should not have to place yourself and anyone else in danger with the issues you are having.
As others have said, stay on it with @DodgeCares. You need to have this fixed ASAP before it has itself fixed with the chance of disastrous results. Like everything else in life, we need to be our own advocates. Go into a dealership and recite what has been stated regarding the Torque Converter. Don’t let the dealer bully you, there’s plenty of them, find another. I wouldn’t be driving this car. Demand a rental and immediate repair. Good luck and keep us posted.
SXTs have been known to have a thump sound on startup. Several threads with various troubleshooting, so that may be normal. The random shut off is not however
www.challengertalk.com
A Guy
Intermittent Thump/Whump from Underneath/Rear on Car at...
All, I am moving this discussion from another ChallengerTalk thread and starting its own new thread here. To continue: I have a 2019 Charger SXT (basically same a Challenger and 300). I bought it new last April, and since my first weekend of ownership, there has been a loud “THUMP" or "WHUMP"...
www.challengertalk.com
A Guy
Just to clear things up a bit. The stall speed (RPM) of a torque converter is an arbitrary number. It varies from one vehicle to the next. It is the RPM at which the brakes can no longer keep the vehicle from moving.
We have locking torque converters that use a third input shaft in the transmission. The transmission input shaft may look like one shaft but it's actually three shafts contained within each other. The third shaft is what controls the lock up switch in the locking torque converter. The transmission control module uses a number of factors to determine when to activate the third shaft and lock the converter. Get it right and a transmission will feel like it has one more gear than it does. Get it wrong or if the switch in torque converter is bad, it may lock up when the engine RPM is too low to support a direct drive condition. Sometimes the car will bog heavily and other times the engine will just stop.
When RPM's are low and the lock up switch is bad you may hear a clunk or thud when placing the transmission in gear. Depending on driving style and conditions, once RPM's rise and transmission pressures rise, the car will move but the next shift may stall the engine. This can happen because while vehicle speed is correct for the shift, RPM's are way too low.
In my original response I stated that I knew it was a torque converter issue. That did not mean that the torque converter itself was bad, it could be caused by a number of things not working properly but most assuredly, it is something in the transmission/torque converter chain of events that is not happening when it is supposed to.
We have locking torque converters that use a third input shaft in the transmission. The transmission input shaft may look like one shaft but it's actually three shafts contained within each other. The third shaft is what controls the lock up switch in the locking torque converter. The transmission control module uses a number of factors to determine when to activate the third shaft and lock the converter. Get it right and a transmission will feel like it has one more gear than it does. Get it wrong or if the switch in torque converter is bad, it may lock up when the engine RPM is too low to support a direct drive condition. Sometimes the car will bog heavily and other times the engine will just stop.
When RPM's are low and the lock up switch is bad you may hear a clunk or thud when placing the transmission in gear. Depending on driving style and conditions, once RPM's rise and transmission pressures rise, the car will move but the next shift may stall the engine. This can happen because while vehicle speed is correct for the shift, RPM's are way too low.
In my original response I stated that I knew it was a torque converter issue. That did not mean that the torque converter itself was bad, it could be caused by a number of things not working properly but most assuredly, it is something in the transmission/torque converter chain of events that is not happening when it is supposed to.
Hello @YAmac!
We would be more than willing to discuss this matter further via private message thread. Looking forward to hearing from you.
And thank you to @2012 White R/T for the mention! Appreciate you assisting.
Hannah
Dodge Cares
We would be more than willing to discuss this matter further via private message thread. Looking forward to hearing from you.
And thank you to @2012 White R/T for the mention! Appreciate you assisting.
Hannah
Dodge Cares
Thuds and idling - Google Drive
drive.google.com
videos with thuds, when starting the vehicle. Better watch in headphones.
I have a 2019 V6 (I bought brand new in 2019), but have never noticed a thump or whump. Except for when I am in reverse and stop suddenly (I hope it's not a ball joint going bad already). I have a Borla ATAK Exhaust which could drown it out. I'll pay closer attention from now on.
This is just a theory... When you stop your car to be done driving, do you pull up and immediately turn off the engine, or do you idle it down for a few seconds. It shouldn't matter....just a thought.
This is just a theory... When you stop your car to be done driving, do you pull up and immediately turn off the engine, or do you idle it down for a few seconds. It shouldn't matter....just a thought.
Hello, thank you for bringing this to our attention. Please send us a PM with a brief description of your concerns along with the last eight characters of the VIN and mileage so we can assist you with this. Thank you!
Yenori
Dodge Cares
Yenori
Dodge Cares
YAmac -- I am having almost the same issue you are experiencing with the exception of hearing the thud under the driver seat. My 2023 Scat Pack just dies while I am driving down the road. I only have 619 miles on the car. I had it towed back to the dealer it took 1 week to get a fuel pump module and install it. Picked up the Challenger drove it home the next day went out started it, let run and it just quit and wouldn't restart. According to the work order the part they "tested and replaced" was 14500107 Module/Pump, Fuel. They also list 68494744AC Module-Fuel Pump/Level Unit.
I am just wondering if they were able to determine what was causing the problem with your SXT? This will be the 3rd time in the first 619 miles the car is going back to the dealer. The first time was for a dead battery. I appreciate any input.
I am just wondering if they were able to determine what was causing the problem with your SXT? This will be the 3rd time in the first 619 miles the car is going back to the dealer. The first time was for a dead battery. I appreciate any input.
Hello, I just had the exact same thing happen to me with my 2023 Challenger GT V6 it happened exactly the same and no codes came up and I am not sure what to do because I know the dealership is going to tell me the same thing. Did you ever find out what the problem was?
@Dodge cares
I am having the exact same issue happe to my 2023 Challenger GT did you ever find out what the issue was?
I am having thr exact same issue happen with my 2023 Challenger GT V6 and I'm not sure what to do. It happened 3 times at different stop lights when I tried to start driving. It was in traffic so it was extreamly dangerous. Also for some reason there is no button showing to send you guys a message?
@Dodge cares
I just experienced this with my 2023 Charger as well. This car is a Hertz Rental and upon pressing the gas from being at a stoplight for a few minutes it stalled. I coasted through the very busy intersection. Turned off the car and it started up right away. No warning lights, messages or codes. I also use this for Uber and I had a passenger with me.
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