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Car shakes sometimes on low speed


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fadom123
New User

Feb 13, 2023, 12:43 PM

Post #1 of 8 (1907 views)
Car shakes sometimes on low speed Sign In

Hi so my car gets really shaky when driving on low gear/low speed, feels like when you're about to stall on a manual, been like that for few months now, doesnt seem to get any worse/better.
It doesnt happen all the time but i'd say like 50% of the time when driving on low speed, when accelerating from a stand still.
Shakes the most especially when i get in the car at the morning after it stayed off in the garage the whole night.

Hyundai i20 prime automatic
2019
Engine size 998
Kilometers - about 65000

If i missed any info thats the model i'm pretty sure - https://www.ultimatespecs.com/...-T-GDI-100-Auto.html
Changed battery recently because old one died
Changed engine oil and some oil filters when reached to 60000 kilometers
(both done by a mechanic)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 13, 2023, 12:49 PM

Post #2 of 8 (1904 views)
Re: Car shakes sometimes on low speed Sign In

That's not a car sold here in the US so we have no service info on it and out help will be limited.

Your first step should be to have the computer scanned for codes and post the numbers here.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Sidom
Veteran / Moderator
Sidom profile image

Feb 13, 2023, 2:53 PM

Post #3 of 8 (1892 views)
Re: Car shakes sometimes on low speed Sign In


In Reply To
Changed battery recently because old one died


Since you changed your battery recently, I would suggest cleaning the throttle body with some throttle body cleaning spray and a brush.

As the throttle body gets dirty over time the computer slowly opens it a bit more and more to idle correctly. When you change the battery, all the settings go back to the factory default settings and the setting for the throttle body is now too low so the car will idle really low or even die.

This is something you should do As maintenance anyways So this would be a good time to do it.
Also in this day and age if you ever need to disconnect the battery for any reason, it's a good idea to use a memory saver Memory savers eliminate problems like this


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Feb 14, 2023, 12:18 AM

Post #4 of 8 (1874 views)
Re: Car shakes sometimes on low speed Sign In

As said, Sidom here it's highly likely the new battery and reset. IDK it's not sold to the US, TMK but most default already said.

MEMORY SAVERS! A shop/repair place should have used one to replace a battery or ever a reason to disconnect one - even to clean posts/terminals or for other service/repair to a car.

It should snap out of it over cycles of drive time ditto w Sidom, clean throttle body. Then go drive it, shut off and wait, drive (assorted driving and stops and starts) it more it will relearn how to idle :-)
Tom



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 14, 2023, 5:20 AM

Post #5 of 8 (1868 views)
Re: Car shakes sometimes on low speed Sign In


Quote
It doesnt happen all the time but i'd say like 50% of the time when driving on low speed, when accelerating from a stand still.


I guess it depends on whether this is just an idle speed problem or possibly a misfire under acceleration. We need some clarification and any stored codes.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
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Feb 14, 2023, 8:29 AM

Post #6 of 8 (1863 views)
Re: Car shakes sometimes on low speed Sign In

Arg, 3cyl if one acts up feel horrible or worse than more cylinders.

Get the codes if you kept driving it some will be because it's not running properly of IDK how many one the issue causing this.

How long for the battery dying? KMS?

It "died" rather than any warning for the model year was original? It would be happy at the end of the old one if you recall if original or not look at door jams should show a month and year car was made could be 2018 is aging battery from that date new usually pretty new or close to that.

Read codes hope the tech (get some help) knows how to read whatever device tech has if this ran well few KMs ago hurry it will make new issues/problems to fix you won't like it.

Opinin - perhaps just mine that 4 stroke engines never did well as 4 stroke engines IDK how they cancel the normal and expected vibrations and poor feel one would have? Just that IDK nor 5 cyl. both used for quite a while now figured something out??

Good luck - Tom



Sidom
Veteran / Moderator
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Feb 14, 2023, 2:48 PM

Post #7 of 8 (1848 views)
Re: Car shakes sometimes on low speed Sign In

Yea that 50% was a bit curious. A low idle problem is all the time until it relearns. I guess it's just possible it wasn't as noticable at certain time?


Yea Tom, the biggest problem I saw by not using a memory saver was the GM trucks breaking a mode door actuator when they would relearn, due to weakened plastic and a suspect relearn procedure.

The shops/techs always got blamed....and it kinda was their faults for not using a memory saver but the base problem was a worn out actuator that was ready to die anyway.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 14, 2023, 2:51 PM

Post #8 of 8 (1844 views)
Re: Car shakes sometimes on low speed Sign In

Yeah, they used to get stuck all the time. I've had to drill a few holes in the housings to push the door back into working range.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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