Car Shaking Problems

Normally this is caused by a warped rotor. Have your brakes inspected and rotors turned or replaced.

Go to youtube; type in "differential gear", there is an old 9 minute video demonstrates how they work very well.

There are several types of front suspensions that allow your vehicle to both steer and go over bumps in the road. One such suspension type is called the MAC-PHERSON STRUT. The intent of the Mac-Pherson Strut was to reduce the " unsprung weight" of the wheel and suspension components. Doing that can significantly improve handling and provide better contact between tires and the road.

Strut components can wear out, and when they do they need to be replaced so that the vehicle will operate safely. Commonly, strut inserts (similar to a shock absorber), springs and bushings may wear or otherwise fail, seriously degrading the performance of your vehicle.

Without much to go on, I would suggest you look for a vacuum leak, especially if the engine runs good under acceleration and only shakes and shudders at idle.

You have a misfire. Check the coil packs. If the first answer don't help also check your spark plugs and check your motor mounts and if that not it get you exhaust checked or do a compression test.

first up i would check to make sure all plug wires are installed to the correct plugs 2 wires swapped to out of sequence plugs will cause this misfire

You need to balance your wheels. Sometimes, your shocks can worsen the experience.

Probably warped brake rotors. They can be removed and resurfaced or replaced with new ones.

They will bright up when something is wrong. Each one means something different but you can use the users manual to figure them out.

Worn front end parts, suspension issues, slipped belt in the tires, tire balance problem.

http://www.agequipment.co.uk/fmccal.html

If you put the plug wires on wrong, absolutely.

Tire out of balance, bent wheel, defect in tire, or suspension parts worn.

Your ignition timing is probably too far advanced.. This means that the the position of the distributor is allowing the ignition to fire before it should. If you aren't familiar with how to do this it should be done by a mechanic. take a look at this link for a better understanding. http://en.wikipedia.org/wiki/Ignition_timing hth

You engine is probably misfiring. Check your ignition and fuel systems.

First thing I would do is make sure that all the lug nuts are on all the tires and that that they are TIGHT. Another possibility is that when the tires were rotated that some of the wheel weights were knocked off.

Check the egr valve to see if it is clogged, and look for vacuum leaks. These would be the two most common places to start.

Probably warped brake rotors. They can be taken off and machined true or just replace with new rotors.

If the noise or vibration is coming from the rear axle itself, then you may have a worn set of gears in the rearend that may need replaced or adjusted. The vibration may also come from the driveshaft in need of some new universal joints. I always start with the cheapest fix and would pull the driveshaft, take it to a driveshaft repair shop and have them check balance and while it was there replace the universal joints. Reinstall the driveshaft and see if the problem is still there. If it is, then it is time to get into the rear end and pull the rear cover off and maybe determine if there is a lot of gear play, metal shavings or broken parts. It takes an experienced person to replace rear gears. Doing it wrong and getting the gear set meshed incorrectly can lead to premature failure. The average Joe can do it but plan on buying, borrowing or renting certain things to make sure you do the job correct, otherwise you will be doing it all over again. Some jobs are better left to the pros.

The tires may need alignment if it pulls to one side and or the wheels may need to be balanced

That doesn't make any sense. But if your car vibrates at idle and stand still, then you probably have a fuel delivery or ignition problem that is causing a misfire.

Loose or worn steering parts, suspension worn, tires out of balance.

Check to heat-shield at the catalytic converter because something is loose

check spark plugs