2005 Chevrolet Trailblazer Q&A
2005 Chevrolet Trailblazer Question: engine vibration
check motor mounts. how does it run?? are you up to date on all your services?? Roy - mastertech6371
Motor mounts are common, but could be something as simple as cleaning the throttle body out. When its dirty, the vehicle idles a bit lower than normal, even worse when the A/C is on. This can exaggerate normal vibrations. - Autohaus Lake Norman
The cooling fan clutch may fail causing excessive fan noise and/or the Check Engine Light to illuminate.
Mechanic has replaced front motor mounts which has not helped lessen the loud vibration while sitting at stoplight in gear. Turning A/C on seems to make it a little but worse. Putting car in neutra...
Usually stops if put into neutral. I cleaned throttle body.
Ok so I have the same problem, started around 125k but only in the winter, summertime was fine. Car now has 145k and the problem is there year round. Just like everybody else same symptoms however ...