- This topic has 2 replies, 2 voices, and was last updated 9 years ago by
.
-
Topic
-
Hey forum!
I’m trying to diagnose an issue with bad steering vibration after 50mph, and noticed my front upper motor mount is cracked, I’ve also been dealing with bad steering vibration for the past month or so, I’m trying to get to the bottom of this.
My question is, can bad motor mount(s) cause steering vibration at 50+ mph?
I also hear a knocking on my front passenger side before / after I replaced the shock, the knocking is still there on the bumpy road leading to my house (Not dirt road), I inspected the upper control arms to the best of my ability and can’t notice anything out of place or recreate the knocking when the car is not in motion, my steering is also slightly pulling to the right now, I’m leaning more towards replacing the control arms with adjustable camber control arms (The car is functionally lowered for autocross), I don’t have the budget to do both right now, and would really just want to stop the steering vibration first, any advice is greatly appreciated!Note: At highway speeds ~70mph, when letting off the gas the vibration almost completely stops, and It’s also really bad when going up an incline.
Hope that helps narrow it down.Regards.
-
Replies
-
It seems more likely that you have a suspension problem…
Bad tie rod end
Bad ball joint
Bad wheel bearingThe key in finding these is to jack up the wheel and wiggle it horizontally and vertically and feel for looseness. A lot of times you’ll feel the looseness and just barely, barely be able to see movement in a ball joint or something, but sometimes you can’t actually see the movement. Also if the rubber boot is cracked and/or you see grease has leaked out you should suspect that there may be a problem with the joint. Keep in mind that when you wiggle the wheel in the horizontal direction you will feel some movement because naturally your wheels are designed to move that way via the steering system, but it feels a lot different than actual looseness in a suspension part. The movement you are looking for feels a lot like if you thread a large nut onto a bolt but don’t tighten it down. If you were to grab the nut and try and move it you would feel it kind of rock back and forth ever so slightly. The movement feels very metalic not smooth like the movement in the steering system.
- You must be logged in to reply to this topic.