I have a 2009 Jeep wrangler. I've had it 10 months, in the last few weeks i noticed a slight engine vibration, which has gotten worse over the past few weeks. It vibrates whenever i am going at a constant speed, regardless of the speed, 10 mph, 30 mph or over 60. it does not vibrate when accelerating, or when my foot is off the gas. I am going to go have the tires balanced this week, but it seems like something else??
ok. The engine only vibrates when at a constant speed, it happens at around 20mph and faster. it doesnt matter what speed i go, 25, 35, 40, 50, etc... it vibrates just the same no matter what the speed. But it doesnt vibrate when sitting idle, it doesnt vibrate while i accelarate. and it doesnt vibrate when my foot is off the gas. what i am doing now to avoid the vibration is accelarate to the speed limit, then let it slow down alittle then i speed back up, and so on. One friend on mine told me that it was the tires, and another said it was the U joints.
Easy way to eliminate engine vs. drivetain drive down a hill (no turns) when the vibration is going good, slide it into nuetral and kill the engine if its still vibrating you have a drivetrain/tire issue
Took it down to the dealer to get a diagnostic. They determined that the front CV boot was damaged. They also came up with a list of other small things that need to be fixed. They did tell me to go get an alignment and have the tires balanced.