Anyone had their transmission simply not respond, when flooring it?

[xplorre]

When you pinned it, did you lurch forward at all (like a full loss of power) or continue to carry your cruising speed?

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[Jacob]

Honestly sounds pretty normal to me. The cpu has to pick a gear given how far you pushed down on the throttle and of course it’s a turbo’d engine so you have that lag. Next time use sport mode or double tap the throttle to down shift.

 

[harringtondav]

Most times I stomp on mine I'm at least 15-20 mph/1800-2000 rpm and get immediate response.
I think fly by wire and turbo lag limits standing hole shot response. Our Dart 1.4 L turbo stutters at hard throttle at a stop. No throttle body, Multiair variable intake valve throw. ...I noticed the same lag with our Ranger.

 

[got3fords]

Most times I stomp on mine I'm at least 15-20 mph/1800-2000 rpm and get immediate response.
I think fly by wire and turbo lag limits standing hole shot response. Our Dart 1.4 L turbo stutters at hard throttle at a stop. No throttle body, Multiair variable intake valve throw. ...I noticed the same lag with our Ranger.

Ok, I had to DuckDuck the Dodge Multiair system and watched a Utube video. What an interesting animal.

 

[harringtondav]

Ok, I had to DuckDuck the Dodge Multiair system and watched a Utube video. What an interesting animal.

Chrysler has been owned by more companies than I can count. Fiat was the owner when we bought the Dart. The Multiair and Dual Disc Clutch Trans (DDCT) were from Fiat/Alpha Romeo.
Our (now daughter's) 2016 Cherokee 2.4L is also Multiair.
The system touts better performance an mileage than a TB fixed throw intake system. No way for us to compare, but both have been reliable. Dart easily gets 40+ mph on long trips and has nice oomph when needed.
The Dart caused me to buy my first factory extended warranty. The Multiair module and dual clutch are non-repairable, R&R modules. I recon replacing either will pay for the warranty.

 

[moe3754]

Anyone had their transmission simply not respond for a longtime, when flooring it?
I was on the highway recently, and was merging into traffic from a near-standstill (as is normal).
I was half out of my lane, with high-speed traffic in the lane I was merging into, and floored it while in D mode to merge into the lane.
Simply nothing happened for SEVERAL SECONDS(like 3 seconds). It seems like I lost all wheel power. Not even slow movement while turbo spun up -- simply 0 power.

After those few seconds, the vehicle finally started accelerating. I didn't move my foot so no, I hadn't been accidentally pressing the brake

Anyone had this before?
Is this a transmission issue? Engine issue? Either way it was extremely unsafe.

Mine does this every morning when I first start it up, it will not move for a couple of seconds also when I had the oil changed a week ago, they told me that the fluid in the transmission was low, but it should not be because it is so new.
I took it to the service department for them to look at and guess what they could not find anything wrong with it and also said the fluid was where it was supposed to be. Somehow, I knew that was what they were going to say and that nothing was wrong, but it still does it in the morning when I start it up. Forgot this happens when backing out of the garage in the morning I barely touch the gas pedal to get it out and if I let it sit for a minute or two then put it in gear it does not do it.

 

[TJC]

Most drive by wire vehicles for some reason seem to have a little bit of lag built in. I don't know why, maybe it's a "safety" feature to stop them jumping away if you accidentally bump the throttle, maybe it's designed as a soft start to make life easier on the driveline. I do know, it can be extremely annoying at times, combine it with turbo lag and you have a double whammy effect. It's even worse on my diesel model, diesels being naturally a little bit slower to spin up. I find a steady push to the floor often responds much faster than suddenly slamming it down.

That drive by wire lag wasn't noticeable on my 2003 Maxima, my first drive by wire throttle controlled vehicle.

I notice it a lot in my 2020 Ranger. It is there on my Mazda CX-5 but nowhere near as bad.

My wife doesn't like it at all, and prefers the 2005 Ranger. She tells me, "It should go when I press the pedal, not wait a second or two. I can't trust in when timing is critical merging into traffic."

And she is correct. It generally doesn't matter in a rural setting, but it matters quite a bit when traffic is heavy. I've adapted to it, but don't like it either. Modern cars don't like abrupt actions.... start to slow and then change your mind and throttle up drives the software system crazy.

It may simply be under powered computer hardware as well.

Sometimes less is more. I like my throttle cable!

I've noticed in the last few years that traffic is much slower accelerating at traffic lights and cars are spaced quite a bit apart when stopped. Maybe ASS and lane distance spacing is active on these modern cars?

 

[RedDakooter05]

I usually had that problem if my wheels were turned or my truck was on uneven pavement.


Same thing happens on my frontier but less often.

 

[dtech]

I've noticed in the last few years that traffic is much slower accelerating at traffic lights and cars are spaced quite a bit apart when stopped. Maybe ASS and lane distance spacing is active on these modern cars?

In certain areas of Colorado - like the Denver area many people have to accelerate slowly at traffic lights , mostly it's a defensive reaction to avoid getting T-boned by the frequent miscreants running the redlights, it's become all too common place, and of course the populace objects to cameras that catch the offenders in action.

As to the "lag" or sometimes slowness of the tranny to respond - IMO it's programmed reasonably well, far from perfect but the Ranger is still a 4,400 lbs vehicle powered by a small displacement engine, there are certain situations where the tranny is unlocked, rpms are down as is available boost and you can get a slower response, seemingly way to slow where you are in a situ that you need quick acceleration. But overall greatly improved from early turbo 4s - like in the 70s and 80s, when I drove turbo 4s in Saabs.

 

[Grandaccess]

No, it wasn't turbo lag. With turbo lag there's still some power until it kicks in. This was literally 0 power for 3-4 seconds. It's not like any other turbo lag i've ever encountered, and i've floored it for merging countless times (so know what the lag is like).

A few days ago I had that happen, it was on a colder morning only a Min. from starting up still in my driveway, it was not turbo lag for sure, I pressed the gas just normal and I seen the RPMs go up but it didnt move, I just figured cold or the brain had not woken up yet ...

 

[Friday yet?]

A few days ago I had that happen, it was on a colder morning only a Min. from starting up still in my driveway, it was not turbo lag for sure, I pressed the gas just normal and I seen the RPMs go up but it didnt move, I just figured cold or the brain had not woken up yet ...

Not a Ranger! But similar experience this week.

Had a Ford Edge as a rental this week. Leaving hotel garage one morning, exit is a fairly steep incline, had to get off the throttle for a momentarily confused garage door then right back onto the gas. Car did nothing. No forward movement, no increased RPM's, nothing. I had to look at the tach to ensure it was still running. I hit the brake and sat there a second, then eased onto the throttle and went on my way. Weird.

Also, for the first 3-4 minutes of driving each morning that thing shifted like it wanted to strip every tooth of off 2nd and 3rd gear. I cringed at each shift. Once it warmed up just a bit it shifted perfectly fine.

 

[YaBoiNewton]

Anyone had their transmission simply not respond for a longtime, when flooring it?
I was on the highway recently, and was merging into traffic from a near-standstill (as is normal).
I was half out of my lane, with high-speed traffic in the lane I was merging into, and floored it while in D mode to merge into the lane.
Simply nothing happened for SEVERAL SECONDS(like 3 seconds). It seems like I lost all wheel power. Not even slow movement while turbo spun up -- simply 0 power.

After those few seconds, the vehicle finally started accelerating. I didn't move my foot so no, I hadn't been accidentally pressing the brake

Anyone had this before?
Is this a transmission issue? Engine issue? Either way it was extremely unsafe.

Transmission shift logic. It is incredibly conservative in regular Drive mode. Next time you want to speed up while merging or passing or whatever, pop the shifter down to Sport mode and you'll have the instant response you're looking for. Also works in tow/haul mode.

 

[Friday yet?]

steady push to the floor often responds much faster than suddenly slamming it down.

Agreed. I think I've suddenly floored my truck once. Learned that lesson. Fairly aggressive pedal push gets things going just fine. And with wheel spin if I'm not careful. These trucks will scoot!

Flooring it is completely removed from my mental driving habit/options now. Once was enough for me as I was passing some 45 mph idiot on a 60 mph limit 2 lane road. Not the best spot to learn I must say.

 

[Cabose-1]

It has happened to me as well. I was at a stop though. Gave it gas and nothing, about 2 second or so later it just took off. Software i guess.

 

[Aphron]

I’ve experienced what you did twice, both when pulling out in front of traffic. Ive had 5 different turbo vehicles before this and this is not turbo lag, as some have previously said. It is a faulty transmiission symptom. After experiencing this for the second time my cdf drum was replaced ny dealer at 30k miles. It has been great since. I would look into transmission.

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