[die$el<3]

Has anyone else experienced a vibration through the steering wheels and under the seat when they first start their D up after it's been sitting overnight or for a few hours ? I notice the vibration when I put the car in drive and my foot is on the brake at a red light. Also feel a vibration through the steering wheel when I go over a speed bump. Any one else experience this ?

[die$el<3]

Forgot to mention my car is a 2009 with 122000 miles

[32valves]

sometimes but its winter weather and the is temps below 30'f...

[die$el<3]

I'm in so cal so doesn't get below 50. Worried I might have a leaky injector

[cincy_335d]

I get this from time to time as well. My car only has 47k though. If I rev it a little bit it goes away. In the winter, the engine idles a little lower in rpm for me vs summer. 650 rpm winter vs 750 rpm summer. That small change seems to make it go away. It doesn't bother me though as it is very slight, but noticeable.

[gavronm]

I've burned through a few bad injectors and would get a bit of a rough idle now and then like you're describing. It always threw a code after a few occurrences.

As for the speed bumps, it's safe to assume you've got a worn component or three given your mileage.

[locolobo]

I just discovered the vacuum controlled engine mounts. Mine was cracked, although no symptoms. Definitely check your engine mounts. See my post in my plan and tools about this, with photo

[die$el<3]

Originally Posted by locolobo

I just discovered the vacuum controlled engine mounts. Mine was cracked, although no symptoms. Definitely check your engine mounts. See my post in my plan and tools about this, with photo

thanks i will check that. can you tag me on the post you are referring to?

[remlemasi]

Originally Posted by locolobo

I just discovered the vacuum controlled engine mounts. Mine was cracked, although no symptoms. Definitely check your engine mounts. See my post in my plan and tools about this, with photo

+1

I had similar issues.

[Barmlot]

+1 motor mounts. I had rough idle almost exclusively in park, got motor mounts replaced and it's perfect. I was told that it is common on our cars.

[9mmkungfu]

Originally Posted by Barmlot

+1 motor mounts. I had rough idle almost exclusively in park, got motor mounts replaced and it's perfect. I was told that it is common on our cars.

I have the same. In idle, with the car not fully warmed up, there is a slight vibration while in park.

I'll check the mounts. Does anyone have part numbers handy?

[Yozh]

Before you go change the mounts, please check your vacuum lines. The driver's side gets easily pinched between the subframe and front suspension brace.

[kbsilver]

Originally Posted by 9mmkungfu

I have the same. In idle, with the car not fully warmed up, there is a slight vibration while in park.

I'll check the mounts. Does anyone have part numbers handy?

I think a little extra vibration when cold is to be expected of a diesel. Mine has done it since new.

[die$el<3]

a little I would understand, but not when the shake is how my shake is. Just clipped my boost hose back down. Next is to see if any vaccuum lines are loose like Yozh suggested.

[Yozh]

Originally Posted by die$el<3

a little I would understand, but not when the shake is how my shake is. Just clipped my boost hose back down. Next is to see if any vaccuum lines are loose like Yozh suggested.

To be honest at our cars' age I would suggest replacing those vacuum lines with some quality silicone ones. You will not be able to do them all without disassembling a lot of things, but can do a large chunk of them fairly easy. Just watch not to break some little plastic nipples that lines are connected to.

[BB_cuda]

Are the vacuum lines all same diameter or need different ones here and there?

[Yozh]

They are the same 3.5mm ID I believe. Brake Booster ones are different, but they are plastic and are not usually replaced. The ones under the intake manifold at the vacuum distribution block are difficult and should be done when intake is off. Make sure to be careful with plastic nipples. They are brittle. Also, watch for the thickness of the silicone hoses, some thick ones are hard to route. Ultimately, I would rather do the lines in Viton instead of silicone.

[Yozh]

This may be the best candidate:

http://www.mcmaster.com/#catalog/122/131/=11o125d

The one that is:
$4.56 per ft.
Product code: 9627T14

Fuel Resistant Blue Fluorosilicone Tubing.

[BB_cuda]

Thank you Yozh. Rep points for you too.

Per the other swirl flap => to blanking plates thread, I will have vacuum hose on hand when intake is pulled. Mcmaster is wonderful source of all sorts of weird parts. This is where I got parts to mount spare tire underneath trunk. The only thing would be doing different colors for identification purposes. No, I'm not pimping it out with red lipstick like somebody compared PR's scoops to. jajajaja

[Yozh]

Too bad there is not Hello Kitty print vacuum tubing. Lol.

Or may be we need one in ///M colours.

[Fork!TheSpoonWrecker]

Ive noticed it too, started when the temps started rising again. It was 2c outside today. Wasnt doing it when it was colder outside.