Jump to content

'08 front suspension knock

Recommended Posts

Our '08 Edge FWD Limited, has a knock in the front suspension. It feels like a stabilizer bushing but they look and and feel ok. It ONLY happens when either the left or right wheel hits a bump or pothole. When I go over a speed bump with BOTH wheels, there is no knock, so the noise is associated with individual wheel movement.


I suspected it may be a spring seat but that would make a noise at depression with a wheel movement, left, right, or both wheels.


Back to the stabilizer bar bushings. I got under the Edge the other day and tried taking the bolts loose. Tried is the optimum word. No luck. I broke one ratchet wrench and socket (Snapon, if it makes any difference). Interestingly, I cant find these bushings anywhere at any of our local auto parts stores and the Ford dealer says they dont stock them(!).


I'm tempted to get a set of 33mm performance bushings and get out my trusty 1/2" breaker and 15mm socket and have at it!



Link to comment
Share on other sites

  • 2 weeks later...
  • 5 months later...

I finally got too frustrated and went ahead with the struts and mounting plates. KYB struts and MOOG bearing plates from Rockauto.com and about 4 hours of my time and the problem is gone. Not to mention that it rides better too, not that it was bad to begin with.


Now all I have to fix is a hard transmission shift at very low speeds and load, like when driving around a corner from a stoplight. It bangs into second gear instead of a controlled shift. Increasing the load cures the hard shift. Different thread this time.

Link to comment
Share on other sites

The local dealership didnt acknowledge any TSB when asked. This is the standard answer I get even when I know there are others with previous vehicles we've taken in. When I bring in the TSB number, they say it only applies to certain vehicles and act surprised when I confirm that ours was included (three previous Explorers, one Lincoln Town Car and one Lincoln MKZ).


As for if this vehicle is included in a TSB, I havent pursued it and it doesnt happen all the time. My Edge has 120,000 troublefree miles on it and I would be surprised if I get a TSB notice.

Link to comment
Share on other sites

  • 2 months later...

For what its worth, when I changed air filters this past week, I found that the duct hose connecting the air filter to the intake manifold was loose. The Edge has had a hard to pin down vibration felt through the throttle pedal along with the harsh shift. I dont know how it was loose but its been that way for quite a while.


Tightening the hose clamp seems to have solved the vibration and as a side benefit it seems like the trans shift problem has gone away too. The mass air flow sensor is tied into everything it seems.

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...