Over the last few days my cars been acting really weird, it seems like its shaking/vibrating a lot more than normal. I first noticed it in the clutch, which i had replaced a few months ago (and has been fine till today) when I press the clutch or just touch it with my foot while i'm driving i can feel it vibrating a lot, it doesn't do it as much when the cars in neutral or when i'm stopped but it is really bad when i'm accelerating or cruising at a constant speed (about 65 on the turnpike). when I got home I noticed that when the car idles it shakes a lot too, is when i put the car in neutral i can see the shifter vibrating like crazy, i never rememeber it doing that before, now in other cars yes, but never has the shifter in my crossfire shaken that much. another strange thing is when i accelerate the car makes this sound that sounds like a subdued buzsaw or a phone vibrating on a table its really quick but loud, i thought it was my phone vibrating against the sides of the plastic change holder at first. But after my hour drive home from work i got out of the car and could still feel the shaking, which is annoying/

Everyone who i told or tried to show thinks i'm crazy any ideas? I'm thinking one of my motor mounts is loose causing the car to shake left and right more than usual. Or possibly the clutch or flywheel is broken and therefore off balance. hell it could even be bad gas. i have no idea, its just bugging the hell out of me. the clutch works fine and the car runs fine (besides the vibration, of course). I was just wondering if this has happened to anyone else and if you guys have any ideas.

Thanks!

 

I think you are correct, motor or tranny mount. Lift the hood put on the hand brake hard, put your foot on the brake, put it in gear and see if the engine lurches around too much when you give it a LITTLE gas.

Have a buddy you could afford to lose watch it from the front or from the side if you can't.

 

Surely you meant wife. You'd never do this to a buddy.

 

thanks! I'll give it a try tomorrow and let you know what happens.

 

Take NOTE :
This engine is a 6 pot and is normally very smooth, with or without knackered engine mounts.
Do the check suggested by our friends below for good measure.

The vibration at idle and worse under load......
To me ... this points to flywheel !!!

The flywheel is a dual-mass unit & it sounds like the springs have broken down.
This will cause the outer orbiting part of the flywheel which has the clutch mating surface and starter ring gear to run eccentrically, and even worse under load.
IF it is the flywheel, and this vibration is coming from here, the damage will be passed thru to the release bearing, the main engine bearings, rear seals, gearbox input shaft bearings, primary gear shaft bearings, + gear teeth, seals, and in extreme cases will bend the gearbox input shaft - but the box will be a scrapper by then any way !

You may even notice the the sound of the starter ring gear making an uneven noise as the starter rotates the flywheel. There will likely be an amout of slop take up as you accelerate and decelerate, noticeable more in a higher gear ?

If I'm correct . . . . . and Im sure I am......
You WILL destroy your gearbox and items detailed above if you continue to drive without getting this fixed in a few short miles..... do not drive the vehicle !!!!!

In theory, you clutch fitter will have some kinda guarantee for the work or parts - provided you had the total clutch package fitted incl flywheel...

If you didnt, and the flywheel is as fault, you will be wise to replace the whole lot again, ie clutch disk, release bearing AND flywheel when you do the job again, as each of these parts will damage each other in this instance.

Regards
Grant B

 

"Here.. Hold my beer and I'll get in front and watch what happens".. LOL