pilotdog68

Yep, I've watched your video. I'll see if I can find a helper to record for me to see while I do the same test. I'm just not sure I'll be able to tell if it isn't really obvious. Anything else you think it could be? I'm stumped, and I don't want to do the mounts unless I know for sure they're bad.

In case you missed it, I got some replies in a new thread I started. Hopefully I don't cause too much confusion by having two threads now. http://www.fordedgeforum.com/topic/20262-vibration-at-idle-in-2007/

On RockAuto it seems they only have "Right Front" listed for the mount by a few different manufacturers. I can't believe there is only one mount, how many motor mounts are there really?

Any estimate on shipping cost to Iowa? Where do you ship from?

I have a 2007 FWD with 112k miles. Right at 500rpm you can feel vibration in the steering wheel and there is an audible low rumble, almost like a bass note if I had subs installed. I just bought it used so I thought it might need a tune up, so I changed the spark plugs (old ones were around .075") and ran 2 bottles of Techron, but that made no difference. The idle isn't actually rough (and no error codes), I think it just happens to be the right frequency to resonate the interior body panels making it very loud on the inside, but quiet and smooth on the outside. Increasing rpms up to 600 or 700 makes it go away completely, which I think rules out the torque converter because that should vibrate more under more stress, right? I'll try to check for motor mounts next, as that's the only thing I can think of. How much movement in the mounts is 'normal'? And wouldn't I notice some other symptoms if it was the mounts? It probably isn't much to be worried about, but it really is annoying at red lights or just idling in a parking lot waiting for someone. At all other RPMs she's as smooth as as can be. (I also replied to an old topic that was in the 2008 specific forum, but I think this could be an issue other models years experienced)

Old thread but I'm having the same issue on my 2007 FWD with 112k miles. Right at 500rpm it rattles the car and is very loud. I just bought it used so I thought it might need a tune up, so I changed the spark plugs (old ones were around .075) and ran 2 bottles of Techron, but that made no difference. The idle doesn't actually seem that rough, I think it just happens to be the right frequency to resonate the interior body panels making it very loud on the inside, but quiet and smooth on the outside. Increasing rpms up to 600 or 700 makes it go away completely, which I think rules out the torque converter because that should vibrate more under more stress, right? I'll try to check for motor mounts next, as that's the only thing I can think of. As was asked earlier, how much movement in the mounts is acceptable? And wouldn't I notice some other symptoms if it was the mounts?