FenderBender
Member
A few months ago, I started noticing a subtle clunk coming from underneath the driver's side floorboard. Here's what I've noticed so far:
I can feel it more than I can hear it. The clunk happens while going over uneven bumps. What I mean by "uneven" is that the driver side hits a bump and the passenger side doesn't (or vice versa). For example, potholes can cause it but speed bumps typically don't. I can feel a clunk under my feet. I haven't noticed any adverse effects while driving, just the clunk.
If I ride in the passenger seat and have someone else drive, I can't notice it (neither by listening nor feeling).
I don't hear it at speeds over ~35 mph, but that could just be that I can't notice it over road/wind noise. The *clunk* feeling also seems to go away at speed. I figure since it's not made worse by engine RPM or wheel speed, it's probably suspension or steering (i.e. not worn engine/transmission mounts, etc. that would get more noticeable with wheel and engine speed).
It's much worse when it's cold out. I can hardly hear or feel it if it's over 55 degrees outside. Below freezing and it's very apparent. This makes me think it might be a worn rubber/plastic bushing somewhere that gets particularly unhappy in the cold.
I've checked the torque on control arms, track bar, and shocks. They all were at spec.
I also gave a quick look at the control arm bushings (I have Synergy control arms), but they didn't look bad. I'll take another look this weekend, though. I'll also check the track bar bushings and anything that I can get a torque wrench on.
Any other possible culprits I should look at while I'm under the heep?
I can feel it more than I can hear it. The clunk happens while going over uneven bumps. What I mean by "uneven" is that the driver side hits a bump and the passenger side doesn't (or vice versa). For example, potholes can cause it but speed bumps typically don't. I can feel a clunk under my feet. I haven't noticed any adverse effects while driving, just the clunk.
If I ride in the passenger seat and have someone else drive, I can't notice it (neither by listening nor feeling).
I don't hear it at speeds over ~35 mph, but that could just be that I can't notice it over road/wind noise. The *clunk* feeling also seems to go away at speed. I figure since it's not made worse by engine RPM or wheel speed, it's probably suspension or steering (i.e. not worn engine/transmission mounts, etc. that would get more noticeable with wheel and engine speed).
It's much worse when it's cold out. I can hardly hear or feel it if it's over 55 degrees outside. Below freezing and it's very apparent. This makes me think it might be a worn rubber/plastic bushing somewhere that gets particularly unhappy in the cold.
I've checked the torque on control arms, track bar, and shocks. They all were at spec.
I also gave a quick look at the control arm bushings (I have Synergy control arms), but they didn't look bad. I'll take another look this weekend, though. I'll also check the track bar bushings and anything that I can get a torque wrench on.
Any other possible culprits I should look at while I'm under the heep?
