[E46jr06]

Originally Posted by chalaka

Hi there,
I think i have experienced the similar problem as yours ..
I start to notice this "chill-shaking" symptom right after i got my
injectors clean up .. not sure if this is the cause though ... /_\

does this sound similar to the problem you are describing?
when car's at stop .. once in a while, it shakes a bit .. kind of feel like
the car's got a chill from cold or something .. :P

otherwise, the car runs fine .. nothing is that different ..

Problem starts after indy shop:
1. took our my injectors for cleaning
2. change gas filter

so is it possible to be some kind of lose connections somewhere?
or .. i suspect it's caused by somewhere below ..
cat coverter issue? gas is too thick? so ..after burning in the header? pipes?
--> sorry something may sound too weird .. i am just guessing wildly out of my butt ^^

Yeah thats the similar shake I have like if the car is cold and shivering every now and then.

You know whats weird I changed my fuel filter maybe 1-2 weeks before this began. .. maybe it could be a fuel issue or fuel filter maybe a little loose or maybe that plastic clip broke when installed it....

Anybody ever had this issue after installing a fuel filter or be able to give some feedback on if something like this could be cause by a loose connection in the fuel filter connections?

What comes to mind as a bad connection is:
1)the little washer maybe didnt go on right and isn't flush on there.
2) The plastic piece that is used to take off the filter is jammed or broken?..

Just thoughts, in for some feedback.

[chalaka]

Originally Posted by E46jr06

Yeah thats the similar shake I have like if the car is cold and shivering every now and then.

You know whats weird I changed my fuel filter maybe 1-2 weeks before this began. .. maybe it could be a fuel issue or fuel filter maybe a little loose or maybe that plastic clip broke when installed it....

Anybody ever had this issue after installing a fuel filter or be able to give some feedback on if something like this could be cause by a loose connection in the fuel filter connections?

What comes to mind as a bad connection is:
1)the little washer maybe didnt go on right and isn't flush on there.
2) The plastic piece that is used to take off the filter is jammed or broken?..

Just thoughts, in for some feedback.

maybe we have a winner here .. i'll find time to check the gas filter .. see if this fixes the problem .. and report back ..

I was about to pop another wild guess before seeing your reply ..
could CPV (constant pressure valve) being the key?

i didn't check mine to see if it's actually leaking oil yet .. but saw many forum members have theirs replaced ..
my guess is, something..could be pressure .. causing the shievering.. .. ah .. well ..

Edit:
maybe just bleed the system?
borrowed the pic from another forum member's post

[E46jr06]

I highly doubt that in my case it is the CPV since the oil levels would decrease but I've been checking the levels every 4 days and no change. But wouldn't hurt to take a peak to see if its leaking.

When it comes to bleeding the fuel system from the regulator I highly doubt it would change anything since all it would do is relieve pressure. Wouldn't help is there is something loose or leaking in the fuel lines.

Anybody have any ideas on how to get under and look for leaks on the fuel filter connections? I would think smell may be a way but just wondering if its really noticeable to detect a leak.

[DROnSF]

Were you able to detect the problem?
I'm pretty sure mine has the same symptoms.

[JohnA]

SMG here, I get this too but my rpm's drop slightly w/ it. I thought it was my K&N w/out the MAF screen, changed back to stock w/ new filter didn't help, then changed the coils, plugs, and fuel filter and didn't help either. I'm wondering if it is the MAF sensor or if i need to clean the injectors or ICV

[///M3Fresh]

Anyone find a solution to this issue? I think some of these symptoms you have are similar to mine but I dont think mine has anything to do with the A/C.

Here is an example: I am driving and come to a stop, I will leave the SMG in 1st gear and for a second after I get into 1st there is nothing, once its in first gear after that, it starts. A very SMALL vibration where I can feel it slightly in the shifter and hear it. If I were to give it a bit of gas where it does NOT engage the clutch, the car doesnt roll, it stops. After about a split second after that it starts again. If I take off it stops. It seems like it only happens when I am at idle and am not touching the accelerator......

any though??

[E46jr06]

I wasn't able to figure it out on my car, but it's been riding fine that way.Even though I usually only use my car on the weekends. I still think it might be something related to either fuel injectors, coil packs, maybe even a dirty valve.

///M3Fresh seems that your problem might be a little different, I have a 6spd and its only when i'm in a complete stop in neutral or first gear. Its like a slight shivering type of vibration that happens. I just haven't been able to find out what the issue is.

I think a member on here by the name of "chakala" had the same issue I wonder if he was able to diagnose it, since it was identical to the symptoms my M has.

[chalaka]

hi guys ..

i drove a while with this symptom free for couple months since my last post ..
i used the GT1 tool ..and checked the misfire counter .. forgot if i mentioned about this in my older post or not(sorry about this) .. cyn#3, and #4 were showing some #s of counts on the misfiring .. i experimented with it by changing spark on #3, and coil on #4 .. #4 is improving(no counters of misfiring) .. so i ended up changing both coil(#3 and 4) .. car wasn't "shivering" no more ... not that if i can feel as before..

but car still does that slight dropping/reving of the rpm needle during stop ..
(very slightly .. and randomly)

during the time period .. i homemade a intake air scoop too .. i interchanged the stock filter and K&N filter during this project..too ... felt like the car ran smoother with the stock filter ...

so .. problem may be with the MAF !!!! --> for the slight reving during the stop .. or maybe even the "shivering" problem to some of you may have experienced too .. (if you can make sure both coil and sparks are healthy)

hope this helps a bit during your troubleshooting ..

so in summary.. for shivering or slight rev dropping issue.. maybe check ..
1. spark & coils
2. MAF & filter