Nissan Repair: VIBRATE, 1990 infiniti q45, bad cv joints

Question
i WOULD LIKE TO KNOW WHY MY CAR VIRBRATE WHEN IT TROTLEING, OR WHEN i COME TO A STOP. ALSO WHEN i AM DRIVING THE CAR BAFFLE LIKE IT IS GOING TO SHUT OFF. 1990 INFINITI Q45.  

Answer
Neville.

If it vibrates when you put the brakes on it is the rotors and they are warped.  If it is vibrating when you accelerate I would be looking at tire balance or bad CV joints.  Also, is the engine smoothe at idle?  If it is the above is correct.  If the engine idles badly I would be looking at the tune of the engine.  Replace the plugs, cap, rotor and fuel filter.