i have had my car for 2 years now; and within the first year, my car started to have a vibration through the steering wheel when ever i stopped the car (complete stop). the vibration is a lot stronger now since installed a bolt-on performance exhaust. before i installed the performance exhaust, when i turn on the headlights it would shake a little bit more than when idle. but now with the new performance exhaust on, when i turn on the headlights it would shake like a one of those electric massage for your back. i tried balancing my tires and alignment.. but that didn't help.. i also have a Bosch +2 spark plugs, too... I used the 87 gas and it shake like hell, tried the 89 gas and it a little bit better, and tried the 92 and it kinda feel like the car vibration when i haven't install the performance exhaust, still shaking but a lot better than with the 87 or 89 gas... it comes back on when i turn on the headlights, foglight, or a/c is the worsest one. Can anyone help me with this, please... thanks

 

try to clean the fuel injectors and the tb...i used techron for the injectors and sea foam for the tb

 

u check ur engine mounts?

 

i will try to clean the fuel injector because my dealer also say that too... and what is TB?

 

TB=throttle body

by techron, do you mean chevron gas with techron, or do they sell a seperate additive? The reason why I ask is because I've let the gas go to near empty numerous time :doh: What about STP's fuel additives?