[mawdoinit]

2019 Ecosport 4WD 4 cylinder. Owned since new. Now has 70,000 miles. The rpms have started jumping up about 300rpms and falls right back down about every 3 minute while in cruise control. Doesn't do it at idle. It jerks the car just a tiney bit just enough you notice it. Any idea on why?

 

[XR650R]

First, welcome!
More info, please. Are you sure the car isn't shifting gears to maintain speed? If that's not it, I suspect something's wonky with your electrical system.
Take it to Autozone and use a code reader to see what's going on.

 

[mawdoinit]

I don't think it is shifting gears. I don't know if there is overdrive gear in this car.? No codes thrown. At this point. I'm going to bring it to dealership,but not until oil change needed, but I try to figure some stuff out myself because dealership takes forever

 

[XR650R]

I hear ya about "stealerships."
It's got 6 speeds. When it's in cruise, it will use the highest gear it can get away with, but if you go up a hill or something, it will downshift to maintain speed, or to keep from going too fast on a downhill.
I'm not saying that's what it's doing in your case, but maybe. Do you have a lot of hills where you live? If so, that may be all it is.
If not, get your codes read and look for electrical gremlins.

 

[mawdoinit]

No hills completely flat. I will reply when I get some more information

 

[XR650R]

Flat as a pancake here, pretty much. There's an interstate nearby, so I go up and down the overpasses and the tranny will shift down when it needs more torque. It will do it if it's fighting a strong headwind, too.
I appreciate the swoopy front end and the long, raked windshield, but this car is heavy for its size, and too tall to be aerodynamic.

 

[tom cat]

Just a couple of thoughts. First 300 RPM's is not much so it doesn't sound like its down shifting. However, I will say besides hills, a strong headwind can also cause a downshift.
Here is what I'm curious about. When the RPM increases, does the speed also increase? I think this will be an important factor as to what's going on.
This will probably be hard to detect, if you are in the top gear, an increase of 300RPM will only be a mile or two increase in speed at most.
If you can detect a slight increase in speed, and as you say, it does not happen at idle, I guessing it has to do with your cruise control.
I wish I could help you more, but I have very little knowledge about the mechanics of cruise control. If you are really worried about it, best to ask a competent mechanic who know such things.
I would like say. You have the exact year and model I have. I'm happy you are at the 70,000 mark. It give me confidence mine will last. I don't drive much. Even though I bought it new,,,I am at 4,000 miles...looks like I'm good to go for a very long time.

 

[mawdoinit]

It doesn't increase speed when rpm jumps up. It does nudge a bit, it drops back down quickly. I tried to upload a video that I recorded for the dealership when I bring it in,but says it's large to upload here. Anyone upload a video here?maybe I'm doing something wrong

 

[tom cat]

It doesn't increase speed when rpm jumps up. It does nudge a bit, it drops back down quickly. I tried to upload a video that I recorded for the dealership when I bring it in,but says it's large to upload here. Anyone upload a video here?maybe I'm doing something wrong

I'm no expert to uploading videos here or anywhere else. I do know linking a YouTube video is very easy, If you know how to upload a video to YouTube....do that and then use that link to post here.

 

[mawdoinit]

Ok.im going to do that thanks

 

[mawdoinit]

 

[mawdoinit]

Ok,watch this let me know what you think

 

[tom cat]

Ok,watch this let me know what you think

I watched your video closely, While the miles per hour was not always in view, when it was, it did not change. This might suggest the tachometer is getting false readings or is malfunctioning.
Again, I'm no expert, but at 70,000 miles and if nothing more happens, I'm not sure if this is anything worth worrying about. On the other hand, that's just me. If it truly bothers you, you need better advice than I can give you. Believe me I get it, when something is not quite right, it can really bug you. Please let us knows how this turns out.