Luk3
Well-Known LVC Member
new rear toe links didn't solve this. still have a slight rumble/vibration at 45-60mph.
rumble at highway speeds
- Thread starter Luk3
- Start date
new rear toe links didn't solve this. still have a slight rumble/vibration at 45-60mph.
Did you get it aligned after replacing them? If not you need to.
Luk3
Well-Known LVC Member
i did. definitely needed it
You know there was a TSB on the rear half-shafts causing a vibration at those speeds. The cure is to replace the shafts with units with a different shape.
Luk3
Well-Known LVC Member
Couldn't find the tsb but I found a lot of articles about people with half-shaft related vibration from 45-60mph. None of them specified what type or shape shaft to replace with.
I would guess that any Ford parts counter would be able to tell you what the latest revised part # is for the half-shafts based on your year. Having worked at a Ford dealership, when a new part is released the obsolete parts are sent back to the warehouse, so they shouldn't have anything but the right half-shafts in stock.
Here is a link to another TSB and it's related to the steering shaft, may be worth looking into:
http://www.justanswer.com/ford/39yal-2001-lincoln-ls-bad-vibration-especially-when.html
http://www.justanswer.com/ford/39yal-2001-lincoln-ls-bad-vibration-especially-when.html
IIRC, the new shafts are an "inverted" hour-glass shape where the center section bulges ever so slightly.
Luk3
Well-Known LVC Member
Don't think they make them.
The moog sway bar end links are on Rock auto. They're listed right along with the front ones.
I don't think they make the rear toe links either. Really there's only a couple choices there. OEM, which is something like $140 a piece, some other non OEM ones that are $100 a piece and you lose the rear steering. And then the Deutch parts which you can get both pairs of toe links(with the passive rear wheel steering) AND end links for $140....
Anyways, for rear toe links either dealership or ebay.
Luk3
Well-Known LVC Member
Rockauto deeza toe links are $62 each
Luk3
Well-Known LVC Member
New symptom.
I still have the rumble between 45-65. At night I can see headlights in my rearview mirror slowly zigzag. Also today I got a real vibration going a little over 70mph. I slowed down to 50mph and it went away. I was able to cruise smoothly at 72mph again. Second time this happened in the past 2 months.
I don't know if it is the rear CV half shafts but I'm probably going to replace them next while chasing this
I still have the rumble between 45-65. At night I can see headlights in my rearview mirror slowly zigzag. Also today I got a real vibration going a little over 70mph. I slowed down to 50mph and it went away. I was able to cruise smoothly at 72mph again. Second time this happened in the past 2 months.
I don't know if it is the rear CV half shafts but I'm probably going to replace them next while chasing this
New wheels? Tires?
Luk3
Well-Known LVC Member
Tires have about 3k on them. Rims were pretty straight. Only 2oz off on balance
Pretty straight? The LS is extremely sensitive to any abnormalities. After 3K miles the tire balance could be a little off. Doesn't take much.....
Luk3
Well-Known LVC Member
This has been going on since I was on stock wheels.
Luk3
Well-Known LVC Member
Again this morning when I got on the highway the vibration felt like I had a flat tire for about 1 mile. It went away right before I was going to pull off.
Time to look into those CV joints, or the steering column bearing that was posted in the TSB (if all the wheel bearings and ball joints are good).
Remember, you will get vibs for the first few miles, if it's anything like that its the wheels and is normal, if it's ridiculous vibrations at highway, then checking the steering column bearing shouldn't take more than an hour.
Keep us posted. I'm having a similar issue to find
.That sounds like flat-spotting. How are the front hubs? Check the shock mounts (don't laugh) and make sure the upper and lower bolts are TIGHT.