So I just want further confirmation that it's the coil packs from those that experienced this. I just hit 67K and when I'm at a stop my car will vibrate/jerk then it's fine for a few seconds before it starts again. My rpm at a rest is at 1 but during the vibration it dips down before getting back up to 1. I google the problem and a thread from this forum popped up but it's kinda old thread so I just wanna see that once the coil packs were changed the problem stop. Any help or advice is much appreciated. I have no idea how to change a coil pack so I just wanna get confirmation before I have to take it to the dealership

 

The rpms should typically stay between 1 and 0 (600...700).
Second is jerking happening with car cold and going away is it warms up or it does not related to engine temperature??
Finally is check engine light ON?

 

Most probably it's either the coilpacks, valve clearances, or both. Nobody can tell you with certainty which one it is over the internet.

 

With messed up valve clearances the engine smooths out as it warms up; the bad coils cause hiccups under load

 

Check this other post I just made.
https://www.fitfreak.net/forums/1st-...sfire-fix.html

 

I guy I know that has an 07 manual was fighting this for a while, coils packs didn't fix it. Turned out to be the EGR valve...

 

Coil packs shouldn't cause your engine to vibrate like that, your talking about the coil packs for the spark plugs? Or is there more coil packs haha.
I recently had my engine light come on and the mechanic used my ecu to diagnose the coil packs. 2 were bad I had a bit of near snuffing and hard drive off, I pretty much had to put my foot down more than usual to take off. I feel ripped off even though it was coil packs they said replace all 4 and charged me 650!!! because the other 2 die sooner after, hmm. never again I found 4 for 150 bucks and could easily done it myself wish I did. I still have low idle issues my jazz 2006 model idles at 200rpm!!! And sometimes she nearly snuffs when I go to take off. I also have a bit of vibration issue (feels like it's on the wheels, cvt not the engine?) to cure the problem taking off slower fixes it, what would be the problem?

 

If is vibration, is most likely the suspension or the wheel... it will be hard to pinpoint, you will have go check stuff one by one...

If you have vibration while driving then first check tie rods i guess, then see if your wheels are balance of have "bubble", then perhaps bad bearing.

If it just vibrates when idle or having erratic idle, you can perhaps check my post 2 posts above, and also check the EGR valves. Honestly, for the coilpacks, you could've follow my fix and probably get a few years out of your old packs.

 

Haha I wish I did check your post before going to mechanic, now I just do things myself, if I can.
I don't think it's a bubble in the wheels I had one in each back tire few months after I got the car actually and an easy tyre replacement fixed it the front however haven't been changed and it's been over a year + however else long they've been on the car, they still have some nice thickness on them but I'll replace them in the new year everyone's on holidays now.

Do you have details about the ERG and how to tell if it's bad?

 

Well many simple thing can cause vibration...
Loose lug nuts
Over torque lug nut causing wrapped brake disc
Loosing a balancing weight on the wheel

For EGR search the forum and youtube, you just take it out and use TB cleaner to clean it.

I won't be replying to this thread since it is now off topic.