Direct Injection symtom....

 

Really? Could you enlighten me a little please. My area of expertise is Computers not engines. I know what DI is though. Just dont understand how it does that.

 

Why are you messing with the gas pedal right after you start it up?

 

Because I had a bad vibration at idle when the truck goes anywhere like others and I wanted to see if anything makes it worse. Dont worry im not Maxing the RPM out when the engines not warmed up..

 

Nature of the Beast so to speak. Someone else on this site may explain it. Can't put it in words at the moment.

 

The three I've driven (and currently have) all have vibrated at startup. Echos in the steering wheel.

And these trucks don't like COLD COLD (temp) startups!

the vibration is sometimes worse when you put it in reverse in a situation if its the first drive of the day.

OP, why are you revving the engine on a startup?

 

Not revving per say. I wouldnt ever do that to a cold engine, I just noticed when the engine is idling like others there is some vibration. If you pop the hood open you can look to the right of the engine and theres a couple hoses that are shaking pretty bad from the vibration. I am going to try and make a video either later this week or this weekend so you guys can see. I just noticed when I barely touched the gas pedal and made the rpms barely go up it shakes really bad between that range I listed and its a pretty aggressive shake. But if I give it a normal slow amount of acceleration it doesn't do it, it goes right past the point that it shakes bad on the rpm guage and doesnt do it anymore.

 

To the OP,
If you start your engine after a cold night, and just let it sit... where do the RPM's relax to?
I'm guessing the computer will detect cold temps and run the engine at idle around 1100 rpm.
After 5 minutes or so, it should relax back down to normal idle around 700 rpms or so.
Does it vibrate during this warmup stage? (not touching the gad pedal of course)

 

To the OP,
If you start your engine after a cold night, and just let it sit... where do the RPM's relax to?
I'm guessing the computer will detect cold temps and run the engine at idle around 1100 rpm.
After 5 minutes or so, it should relax back down to normal idle around 700 rpms or so.
Does it vibrate during this warmup stage? (not touching the gad pedal of course)

After it starts it does just as you said, around 1000-1100rpms to warm up the cat and after a few minutes down to 750-850rpms I believe.

 

What brand and octane gas are you using? I run 87 octane top tier gas in mine, usually BP but sometimes Exxon/Mobil, and mine is always smooth.

 

I typically just use Shell 87, which is a top tier fuel. I use fuel rewards then gas buddy on top of it to pay for gas for the discounts. Lately Ive been putting in Shell 87 Ethanol Free vs the shell 87 with 10% ethanol. Seems to make my engine run better and with the discounts I get it makes it .10c more a gallon. I just hit 3200 miles and just changed the oil last night to get the factory oil out. I am going to run this oil for another 2k then dump it and then change it again at 5k and from there on out do 5k oil changes. I am using Pennzoil Ultra platinum 0w20. And a fram TG 7317 oil filter.

 

Maybe the OP needs an idle relearn (revving during cold startup doesn't help). Is the latest TCM update installed?

 

How do I check which version it has. I thought that TCM update was for 2020, 2021, and 2022. I didnt see a TSB for the 2023 yet. I checked here. Nissan Publications I check it about once a week for anything new, I have a 2023 pro x.

 

My 2022 seems to idle smooth on cold starts and we've had some single digit cold starts this winter. I'll feather the go pedal to see If I can replicate this..

I do know that on occasion while sitting at a stop light, etc, with the engine fully up to temp the engine feels like it's welded solid to the frame with the vibrations it gives off. It only does this sometimes though. Runs like a top and gets good fuel economy otherwise..

 

Ok thanks!

 

Mine also has a vibration, although not like yours , just a slight constant vibration at normal operating temp. Goes away with the ac on.

 

@dalekinder I've tried it twice now on cold starts on my 2022. Both times, the ambient temp was around 40F. Mine idles high on cold start for a minute or 3 at around 1200rpm. Right away tried feathering the go pedal, but no matter how light I tickle it, my RPMs go to like 1500+. No vibs at all.

Like I say, the only what I would consider harsher than normal vibrations I get on my 2022 is at hot idle, waiting at a stop light, etc. and even that is not every time.

 

Thank you sir, I appreciate it. I am taking it to the dealer on monday. I also have to get them to look at my steering wheel. Whenever I turn the steering wheel left or right, there is some crumpling noise. My 2022 did this and it ended up being the clockspring making the noise.

 

I have a 2021 Nissan Versa and when the temps get below 40°F to 35°F, the car starts up like it should but 2 seconds later it bogs down bad and shakes really bad and almost dies out. I have to gently keep my foot on the gas just to keep it from dying because it did on me the first time. I am unsure of what this could be. My guess is its the fuel temp sensor or something because after about 5 minutes of stopping it from dying, it runs fine.

 

Has anyone found a fix for this is have a 2024 pro4x and I am getting really bad vibration when I put it in reverse. Also when idle at stop or traffic light it only just started doing this is got 9800 miles on the truck

 

My ‘24 SL vibrates at idle, 650 RPM. It’s been cool weather, 2,500 miles on the odometer.

Is it because “It’s a truck”?

 

No because my car does it

 

you need about 50 more rpm at idle and the vibes will disappear.

 

Now that it’s warm, it idles at about 800 RPM, like buttah.

 

Can/would the dealer increase the idle?

Seems like they could raise it by 50-100rpm to smooth it out pretty easily.