briandye Posted March 2, 2015 Report Share Posted March 2, 2015 I changed my CV joints, as well as sway bar links recently, and now that i'm back on the road, i'm getting a pretty bad vibration that happens only at low speeds, and while accelerating. Usually between 15-30 MPH, and only when accelerating, never when slowing down, or slowly taking off. The best comparison I can give is when you drive over some of those rumble strips on the side of a highway. It never happens at any other speeds, and doesn't even happen every time. Those 2 factors are the only 2 common denominators I can find with it. I was searching around other forums, and some people said they replaced the CV axles and had the issue, and its because they were cheap replacements, but I cant imagine this being normal/acceptable from "cheap" parts. I haven't gotten back under to check, but I did read on ONE post on this forum about a bad bearing in the (Name slips my mind, the bearing that supports the passenger side CV, that you have to take off to swap joints), Im wondering if I possibly (Very doubtful, since I triple checked everything, but i'm only human) left those bolts loose. I hope its something simple like that. Quote Link to comment Share on other sites More sharing options...
akirby Posted March 2, 2015 Report Share Posted March 2, 2015 I've heard some of the aftermarket axle shafts don't fit right and can cause vibrations. Quote Link to comment Share on other sites More sharing options...
briandye Posted March 2, 2015 Author Report Share Posted March 2, 2015 That'd be a big bummer...they fit just as smooth as the OEM ones came out, looked identical as well. (Obviously minus the 100k of Michigan salt corrosion, lol) I don't really want to shell out the insane $200+ per CV for the Motorcraft ones Quote Link to comment Share on other sites More sharing options...
akirby Posted March 2, 2015 Report Share Posted March 2, 2015 http://www.fordfusionclub.com/showthread.php?t=644801 Quote Link to comment Share on other sites More sharing options...
macbwt Posted March 2, 2015 Report Share Posted March 2, 2015 Usually in my past with other vehicles the shaft is not as round as it needs to be so to speak. Any slight bend will cause the vibration. It is really bad at lower speeds but tends to become less with higher speeds. I had a car with this problem and drove really slow or really fast just to avoid the shaking. LOL Quote Link to comment Share on other sites More sharing options...
briandye Posted March 2, 2015 Author Report Share Posted March 2, 2015 akirby- Thats one of the forums I read over when I searched. Im sick as a dog right now so i'm not really feeling the whole "bundling up, going out in this lovely windy 5 degree weather and checking" right now, will post back later/tomorrow when I do check. macbwt- Thats kind of what I was figuring, its not perfectly balanced I suppose. Hopefully were wrong, and its that loose bearing/support, but after reading some more, I would put money on the damn axle. Of course I cant tell what side it comes from, so this is fun. Didn't wanna tear all this down again. I don't think the bolts on the outer tie rod ends are there enough to withhold being taken off and put back on again. Threads were pretty thin when I reinstalled them. Couldn't break them loose to replace them either though. Damnit. Oh well, if thats all it is, its gonna stay like that until Spring. My drive is all highway anyways. Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted March 2, 2015 Report Share Posted March 2, 2015 Hope you feel better soon! I think you were referring to the driveshaft support bearing? That's a possibility. Also possible, low trans fluid or PTU fluid. I'd check those first. Don't want the PTU to go bellyup for lack of fluid or "bad" fluid. Quote Link to comment Share on other sites More sharing options...
macbwt Posted March 3, 2015 Report Share Posted March 3, 2015 (edited) I have an idea for the PTU. They have reservoirs for the coolant, brake fluid, power steering etc. Why not just design in a reservoir for the PTU fluid? Simple line with a plastic holding bottle and just let it expand up in to the tank then suck it back down when it cools. Might be a great after market idea? anyone? Edited March 3, 2015 by macbwt 1 Quote Link to comment Share on other sites More sharing options...
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