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Rpms racing in neutral while I’m coasting 2021 RT DURANGO 400miles on it

32K views 117 replies 21 participants last post by  gtogottogo  
#1 ·
My 2021 Durango RT hemi with 400 miles on it felt like the cruise control was on when I took my foot off the gas pedal at about 30 mph
I put it in neutral and gave the gas pedal a tap thinking the throttle body was stuck and the the rpms shot up to 3500 and got stuck there until the truck came to a complete stop

DEALER SAYS THIS IS NORMAL AND DURANGO IS DESIGNED TO OPERATE THIS WAY. ????

HELP!!!!
 
#56 ·
So if this many are doing it, my guess is Dodge will try to say this is "as designed behavior". In fact, they are telling me my dealer needs to "find another one" to test with. The minute they tell his is normal, I will be sending a complaint to NHTSA. I refuse to call this normal behavior, and frankly I don't think it's safe for a number of reasons.

Sure, you can make the argument that a neutral rev in an automatic is an edge case. It might even be slightly outside the traditional envelope for use. Yes, I know there are states where it is considered illegal to do in traffic. But I'm pretty sure Dodge commercials show people revving these things just to hear the noise. Clearly Dodge knows this is something people do with their products, and they seem to encourage it.

Even if it was programmed into the Durango intentionally, a rev hang until the vehicle comes to a stop is not "normal" behavior in any way, shape, or form. How are we supposed to trust that this won't happen when a Durango is actually in gear? I know I have felt an occasional push in mine - luckily nothing too crazy. Others have reported feeling a little more. Is it just a matter of time before one really sticks and causes an accident? I don't want to be the unlucky first one, and I don't want anybody else to be either.
 
#58 ·
It is all Plausible deniability. Say it does not exist while developing a repair. Release the repair and issue goes away.
Not acknowledging the defect allows them time to get shit fixed or ignore it and that helps their case if they get sued.
Many times it is cheaper to shell out a few million to pay to deceased family members then it would be to do some repairs.
Manufacturers have all that crap automated in their risk assessment programs.
 
#65 ·
Maybe if people started "discovering" the problem during delivery, and demonstrated it to the dealer before they purchased these trucks, they might care about it more. Here's how you do it:

Get the truck up to a low coasting speed - I think 10 mph will do just fine, but I've typically used 25-30. Make sure you are in a place where you are going to be safe doing this. Now, with the truck under no acceleration load, slide it from D into N. Once it is out of gear, wait a couple seconds and give a quick squeeze and release on the throttle... a little longer than a tap, but don't hold it. Imagine you want to make a race car rev sound. Make sure to get it up around 2500 or 3500 rpm... it seems to depend on the truck as to what RPM it happens. Mine actually sticks at 4000. Anyway, take your foot completely off the pedal as fast as you can. If it sticks, you'll notice that the gas pedal no longer responds to any inputs. Tapping the brakes won't change it either. The engine will continue revving until you either coast down or use the brakes to get back under 3 mph. Just as the digital speedometer changes from 3 to 2 the engine will return to idle.
 
#72 · (Edited)
Well since Dodge hasn't confirmed whether this behavior really exists (we know it does), or if it was intentional (how could it be), I don't see any reason to believe newer builds would behave any differently. It seems pretty clear that this is a software problem to me. It's either that or a sensor. Both should be relatively easy to address once Dodge decides to. But until then...
 
#76 ·
That is very dangerous and should be seen by the dealer.
 
#77 ·
I've never had mine actually run away while it was in gear. I've felt a few little pushes where I suspected it might be happening, but never anything that was 100% clear. If it was even happening, the brakes have always overcome it. But it certainly will rev the engine at a constant 4k with no foot on the throttle while in neutral.

So after 3 months of complaining about this "feature", my dealer service manager and the regional rep literally test drove mine yesterday and claimed "operates as designed'. They also said the performance pages are showing the truck making full power. Apparently they can't read their own product's line graphs. I'm pretty pissed off about the whole situation frankly.

So now I'm strongly considering making a video of this behavior and posting it. Maybe I'll send the link to the video to both the NHTSA and Tim Kuniskis himself.
 
#78 ·
I've never had mine actually run away while it was in gear. I've felt a few little pushes where I suspected it might be happening, but never anything that was 100% clear. If it was even happening, the brakes have always overcome it. But it certainly will rev the engine at a constant 4k with no foot on the throttle while in neutral. So after 3 months of complaining about this "feature", my dealer service manager and the regional rep literally test drove mine yesterday and claimed "operates as designed'. They also said the performance pages are showing the truck making full power. Apparently they can't read their own product's line graphs. I'm pretty pissed off about the whole situation frankly. So now I'm strongly considering making a video of this behavior and posting it. Maybe I'll send the link to the video to both the NHTSA and Tim Kuniskis himself.
I would have made them ride with you to show them.
 
#92 ·
Mine won’t hang at 28mph, but it does hang for a few as I’m taking off after the car has sat.
 
#93 ·
I have a dyno session scheduled to see what sort of HP this thing is actually producing vs. what is being shown on the performance pages. I'm pretty sure there is a software bug keeping the HP graph showing kW despite the settings being changed. (I know - a software bug in the Uconnect5 system, go figure!) Anyway, once I know if it's making the right power, I plan to take a video of this rev hang insanity.

Mine will rev hang at 4k on command in neutral, so I don't expect taking the video to be very difficult. First, I'll play nice and give Dodge corporate a chance to respond intelligently (unlikely). Then I plan go directly to Mr. Kuniskis himself. After that it will be the NHTSA. If all that fails, it'll be time for youtube and the media. Not planning to let this drag out too far on the calendar tho. There's an 18 month lemon law limit in my state.
 
#97 ·
You do know that the RT doesn’t have 360hp at the wheels right? It will probably dyno around 260-275hp.
 
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#94 ·
You may feel like cruise control is on but these 8 speed transmissions really like to roll with almost no engine braking unless the grade gets steep

Did a trip to Killington Vermont with the new 2021 tow n go I typically hit some steep grades while the engine is still cold so I shift into neutral to not let the motor rev at 3K+. Its designed to use engine breaking to assist in slowing down the vehicle I thought about this thread and was going to tap the accelerator but then decided its 100% not ever necessary to do this honestly I have to side with dodge on this one. You should sell your Durango and get something with a clutch so you can rev your motor in neutral.
 
#114 ·
I saw this issue soon after I bought my Durango RT 2021.
Like any gearhead poser I threw it into neutral and revved the engine.
Wow it went up to like 3k+ RPMs and would not come down until I coasted to a stop.
At one point I was able to get it to 4k+ rpms revving it in neutral while coasting and it does nto come down until you either throw it back into gear (not good) or coast to a stop.

However, there is no issue unless you rev in neutral while driving. It has been many many months and I totally forgot about it until this thread popped up today. There is no way Dodge will fix this issue because they don't care. It's a very simple issue, software controls the throttle so how hard it is to have the software know you are in neutral and wheels are spinning to make sure RPMS go back to idle. Not hard but again it is about the lack of care Dodge has.
 
#115 ·
I have never rev'd my engine in neutral but like other posters of this thread I can take my foot off the pedal and it will idle/coast at 23ish mph seemingly forever as if it is on cruise. Now.... I've only noticed this after I first start out from the house as I'm in my neighborhood allowing me to do that as opposed to main roads after driving where I can't. I'll have to try after driving and find an appropriate area to test. I also want to say that happens when in 'sport' mode only but I may be wrong on that.