First some background, I first noticed this right after the whole electric system failed, and the car wouldn't start, or even lock the car without closing it manually. I took it to the dealership and used my warranty and got this chip replaced, and everything else is working fine.

I've had my lancer for only 6 months now, and just after this chip problem, I noticed the passenger seat visibly vibrates when I am on a stop light and in D mode. I am not sure if this is the way it has always been, or if I just noticed this now.

It seems to be related to the seat's position, if i put it all the way back the vibration is reduced significantly, however when it is in the middle and reclined the vibration is easily visible and can be felt easily on the top of the seat.

I took it again to the dealership and they are telling me this is normal, and is related to low rpm while on drive. This only happens on stop lights. They even had another lancer there that did exactly the same thing, so I am wondering if both cars have something wrong, or if this is the way they are.

Has anyone noticed this problem?, you have to be looking at the seat at the stop sign and D mode, otherwise you won't notice as the vibration is relatively small and it does not make any sound.

 

This could be one of two things.


Senario A
What your describing sounds like what my tech guys call the Shiver.

What your in D mode if you look at the RPM needle you will notice that that when your car moves forward anywhere from 5 MPH or faster then then come to a near or full shop the RPM need will dip as low as 500 RPM for about a second maybe 2 seconds then return to a normal RPM of 700 or so.

Why this happens isnt always clear but it mainly has to do with MIVEC. By design the technology behind MIVEC allows for adjustments having to do with Idle, low speed, and high speed. The CVT + TQ converter plays a part in this process as well.

A custom exhaust that harms exhaust flow can amplify this "shiver".

Scenario B,

If it remains idling low and rough...

Can signal an ignition or combustion problem. What you should do is remove the spark plugs and look for uniform normal combustion patterns. That will tell you if your ignition system is working good.

I have a few other suggestions, but I am curious to hear more about the issue.

 

Thank you so much for your response. So to clarify this definitely is not normal correct?. I actually did tell my dealership that I though it was a combustion problem but according to them they checked that and it was fine. Any other ideas as to what else could be?.

According to them this is completely normal, and he said he had 2 lancers right now that did exactly the same thing, but by the time I got there 1 of them had already been returned to his owner. The other one did appear to behave the same as mine though.

The issue only happens on drive mode, and after driving the car for at least 2 minutes, as the RPM is high enough right at the start. You have to be on drive or reverse, and be in a complete stop. If the passenger seat is anywhere but way in the back and reclined slightly you can see the top of it vibrating very fast, I do not feel any other vibration in the rest of the car during this time.

So I suppose you don't have this issue with your lancer, and it is not normal?

 

I am not sure if this is a Shiver. You would be able to feel it yourself. This sounds like it could be a few things. But on a scale of 1 to 10 this doesnt seem to be mission critical and may likely just be a minor side effect. Haha, but I say that and know that if it was me. It would drive me up the wall untill I figured out what the hell is causing it. So here is what I can suggest that might help.

It will likely tell you that you are going to have to get to know your vehicle by performing a few checks, but it will give you a little more insight into your car and help you do the type of checks people should do anyway.

1) Pull your spark plugs and see if you have normal wear on them. Its always wise to check the gap at the same time to ensure they are uniform.

2) Check your Electrical. Ensure that your battery voltage is normal. There are some little things you can buy at a walmart and perhaps an Auto Zone which will monitor Voltage level of the battery. If you can watch the voltage level when you see or observe the shaking

3) If you have access to a realtime data monitor, see if you can monitor things like Rad Temps. Ensure that your rad fan is working properly

4) are you modified. If you dont mind it, Convert back to stock just to rule out anything that your car might not like.


Let me know what you come up with.

 

I will try to check that, and also point that to the dealership see if I can convince them that this is not normal. Also the car doesn't have any kind of mods at all yet

 

lol aw we have same car model but i mod alot, i dont get any problem like that.. (Y)

 

Yes I suspected this definitely wasn't normal.

Evo_soul: I have checked my spark plugs and they seem fine, although could you please explain to me how could this be related to the vibration?

 

For any problem, related to the engine, I recommend checking the spark plugs. A trained eye, or even an eye that is use to seeing normal combustion patterns will be able to tell when something doesnt look normal or consistant with the plug. This will give you the earliest warning that there is something wrong with the engine before its too late. Improper gapping can also lead to vibration or misfiring. You should inspect your plugs even if they are long life ones. Its more a rule of thumb.

Well thats my two cents

 

They still can't figure out what is wrong with the car, all they are saying is that all the lancers are the same, which judging by the comments on this thread they are NOT. Anyway I think the vibration is related to the low RPM on drive, specifically this RPM (picture)

http://img508.imageshack.us/i/imageknf.jpg/

 

man i get tht too,, i going need someone check that our.. i dont want to go delership they charge to much >.<

 

You guys can opt to have them raise your RPM idle. No dealership should refuse that service especially if you are within the adjustment period. If you do not get any help with this please shoot me an email and I will do my best to speak to you dealership or forward the matter to head office. But attempt speaking with them first. They should do it.

evosoul.com@gmail.com
evosoulselect.com

 

Thank you so much for your help, I told them that a raise in the RPM idle would solve the problem, and they agreed with me. The problem is that according to them that cannot be done, because it is all controlled electronically... I told them that wasn't true, but they refuse to do it, and continue to say it is not possible....

I will keep trying, and if not I'll shoot you an email.

Thank you,

Oscar

 

I will speak to my Mitsubishi Technical contacts and get you an answer. They may need to do it eletronically via the OBD Data port. Raising the idle will keep the vibration to a minimum.

Cheers

 

i actually have this same problem on my 08 gts. always drops to under 500. seems rpm drops to 300 for the most part causing alot of vibrations for a few seconds before moving back up after a stop in D. checked spark plugs, they are fine, and no engine check light.

any more insights?


thanks

 

I encountered the same problem. Was told that it could be wear and tear on the engine mount. 2 cents.