2006 Jeep Commander, stutters and hesitates when accelling. Also Jeep vibrates and hums when on a freeway at all different speeds. Any ideas
coils or cylinders problems
try a high performance air filter. i had the same hesatation issue and i put in a K&N filter for about $40 dollars and it made a noticable difference. plus its a lifetime filter. hope this helps.
Vibration might be the wheel alignment. Check for that.
I have an 07 Commander. Out of the blue it started vibrating at highway speeds and sometimes miles away from home. I would stop and then startup again and it would be fine. The only thing that I was doing different was I had started using the parking brake so I stopped using it. I havent had the problem since. I experimented a couple of times using the parking brake and learned that the parking brake was definitely the issue. Perhaps Jeep should take a look at the parking brake system.
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