When cranking engine a loud vibratation rattles the entire car,sounds like the area toward the pulley or exhaust ,cant seem to locate exact location ,noise seems to settle as car warms but sound is still there especially in the morning frist crank up
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Have a good look then you may see the problem also the front pulley as their is often a ribber bonded strip in the middle and these break loose causing you sort of vibration .Another source of noise is if the car ceramics inside it have broke up and rattle .
first of all.. lucky ******* i want your car. anyways. when you turn on the ac the car drops idle a little bit and vibrates more. i'm guessing your exhaust pipe is rattling against its worn mounting or something is too close to it and it is vibrating against it. check the right side exhaust pipe and i'm sure you'll see something thats too close or the support mounting worn
Check to see if one of your brackets holding the exhaust pipe has come loose. That'll make a rattling sound - especially if it towards the end by the tailpipe. When you're accelerating - more air is forced thru your exhaust at a faster rate, so it's not moving as much as when you're sitting still and the truck is just at an idle with less air/exhaust moving thru the tailpipe. If it's only making the noise while the truck is stationary & the noise stops one the truck is moving - that pretty much rules out anything to do withe the drive-train or suspension. You are sure the noise is from the back & not coming from under the hood? If under the hood - check your oil level ASAP.
The metal shielding around your catalytic converter could be rattling or the rubber donut that holds the rear tailpipe could be bad. When your car is cold shake your tailpipe and see if you can reproduce the noise. If you can your tailpipe donut is likely bad. Three dollars at any auto parts store. If it does rattle when you shake your tailpipe then the heat shield for your convert could be loose. You need to tighten it up another piece of metal between it and the converter to keep it from rattling. If you hear the rattle when you go over bumps too then your exhuast is probably, loose. Crawl under there and stake shaking things, I am sure you'll find the problem
lots of parts, alternator, water pump, a/c compressor lower area . many of them are on the serpentine belt. the pulleys and tensioner can make rattles. you need to confirm which part has the rattle or vibration, use a stick or screw driver. touch one end on the part and the other near your temple...any noise/vibration coming through?
fiind which one it is. lower noise on the crank can also sound like its coming from up front and that's a deep rattle.
While I am not trully certain, it may be an exhaust heat shield. These, from time to time, may loose a weld and vibrate. Often a "tinny" type of noise. If the noise is more of a heavy thump or such this may be something mechanically loose.
I do hope this may have assisted you,
PS: Great car!
IS YOUR LOUD VIBRATION A LOUD RATTLE IF SO IT COULD BE YOUR CAT BREAKING UP THIS WILL CAUSE BAD RUNNING ..GIVE YOUR ENGINE A GOOD REV 3 or 4 TIMES OUT OF GEAR AND LISTEN FOR A RATTLE,,,,, HOPE THIS HELPS IF NOT CHECK THAT THE EXHAUST IS NOT BLOCKED ?? BEST OF LUCK-ELL BOY.