Car slightly shakes during startup

[Habu]

Anyone else car shakes every now & then during startup? Not much of an abrupt shake but more of mild shake then goes away after about 30secs.

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[Evolution]

100% normal

 

[carmigo]

Anyone else car shakes every now & then during startup? Not much of an abrupt shake but more of mild shake then goes away after about 30secs.

Pretty common, and might not be anything serious. Here is a link to an article that discusses some common reasons:
https://carphrases.com/car-shakes-when-starting/

 

[XtremeMaC]

Pretty common, and might not be anything serious. Here is a link to an article that discusses some common reasons:
https://carphrases.com/car-shakes-when-starting/

This was such a ChatGPT response, I don't know what to say. ? J/k

 

[zrk]

This was such a ChatGPT response, I don't know what to say. ? J/k

If your car is experiencing a mild shake during startup, there could be several reasons for this. Some common causes include:

Engine misfire: If one or more cylinders are not firing correctly, it can cause the engine to shake.

Loose components: A loose alternator, fan belt, or other engine components can cause shaking during startup.

Engine mounts: If the engine mounts are worn, they may not support the engine properly and cause it to shake.

Fuel or ignition system issues: If the fuel or ignition system is not working properly, it can cause the engine to shake.

If the shake only lasts for a short time (30 seconds) and goes away, it's possible that the engine just needs to warm up and settle into a smooth idle. However, if the shake persists or if you notice any other unusual symptoms, it's best to have your car inspected by a mechanic to determine the cause.

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Actual ChatGPT response.

 

[cinosa]

Mine does this, and it's very off-putting. For a supposed "smooth, inline 6", it shakes like a cam'd V8 at 1k RPM. For my car, it only does it on a cold start, and only until it idles down below 1k RPM, then it's fine.

 

[carmigo]

This was such a ChatGPT response, I don't know what to say. ? J/k

Lol i just saw the actual ChatGPT response and it's better... AI wins again

 

[razorlab]

Pretty common, and might not be anything serious. Here is a link to an article that discusses some common reasons:
https://carphrases.com/car-shakes-when-starting/

JFC

Can we ask you an honest question, do you think these continued generic responses will get you more customers?

 

[Habu]

100% normal

Curious what causes it? This is new to me.

Mine does this, and it's very off-putting. For a supposed "smooth, inline 6", it shakes like a cam'd V8 at 1k RPM. For my car, it only does it on a cold start, and only until it idles down below 1k RPM, then it's fine.

Mine still does it every now and then even after driving it (warm engine) and getting back in it.

 

[Habu]

Mine does this, and it's very off-putting. For a supposed "smooth, inline 6", it shakes like a cam'd V8 at 1k RPM. For my car, it only does it on a cold start, and only until it idles down below 1k RPM, then it's fine.

Haven’t notice any reliability issues with it so far though.

 

[gixxersixxerman]

JFC

Can we ask you an honest question, do you think these continued generic responses will get you more customers?

Ill be honest, ive gotten more value from their posts then your 90% smart ass replies to others.


OK thats a lie lolol

 

[razorlab]

Ill be honest, ive gotten more value from their posts then your 90% smart ass replies to others.


OK thats a lie lolol

 

[BigRon]

I noticed it at cold start, but it’s just a small shake which lasts 1sec. It goes away after rpm falling below 1k.
Could be related to lspi - low speed pre ignition or the engine adjusting the ignition.
At least for me there are no loose screws at the engine, checked them a few weeks ago.

 

[BigRon]

After changing the oil to the newest generation of 0w20 the shakes on startup are completely gone, or at least I didn’t notice them anymore.
Tested on a few cold starts from 30-50 F
so it could be related to lspi

can really recommend the engine oil it’s Liqui Moly TopTec 6600, for the states it should be Special Tec AA

 

[Falcon-supra]

I have the same

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