i have a 2005 chevy trailblazer that vibrates. gets worse when air conditioner is on. ive put new tires,new frontend alignment,new sparkplugs,changed my harmonic balancer.my motor mounts are fine.my engine light is not on so i cannot figure it out. hope you can help.thank you bruce leisenring
does the AC work? I would suspect the electric clutch on the AC compressor. I have had one (years ago… actually it WAS on a Chevy too!) get loose. it stayed on the compressor, but shook like heck. had to cut the belt to get home. installed a new one and problem solved.
ac works fine