All sorts of clunking and banging
#1
All sorts of clunking and banging
So I ordered and installed BC Coilovers a little under a year ago. I know many on here said not to get them but on the same note I read alot of reviews and alot of people liked them. Regardless, I installed them and everything was perfect. The car has been in and out of shops for various things so since the install of the coilovers I have maybe put 2,000 miles on it. Well about 2 months or so ago I noticed a random clunk come from the passenger rear area when I turn a corner. Then the front passenger side started to do it. Now today it seems like it is still those two corners but it has gotten ALOT worse. When I brake at a slow roll I feel it clunk/bang, when I am driving at slow speeds and turn I feel it, and I even noticed it today when I went WOT getting on the highway that as soon as it hit boost it clunked. It can be felt at my feet. I have taken it to a shop and the guy who looked it over had an EVO 8 that he raced on road courses and was very fimilar with the EVO suspension. He said he felt that it was the steering rack and suggested I take it to Mitsubishi or another specialty shop for them to tear into it. I personally dont feel that is it. The only thing I am certain of is that the inner tie-rod on the passenger side seems to have a very small amount of play. So, things I have done:
1.) Checked all the bolts on every suspension piece to ensure they are tight
2.) Adjusted preload again per BC's website
3.) Spoke with a rep at BC who stated I should attempt to tighten the upper bolt - did this but the entire shaft to the coilover spins. (waiting on his response to this)
4.) Checked for wheel bearing issues by shaking the wheel whent he car is jacked up
5.) Had a shop look it over
6.) Checked for wheel vibration on the highway - smooth
What else can I do? Take it to Mitsubishi and get totally shafted with a HUGE bill? Im at a loss on what to check next but the sounds are getting progressively worse. I am almost tempted to drive until something breaks and then I will obviously know what it is. But then again I dont want something snapping in the suspension at 60+mph.
1.) Checked all the bolts on every suspension piece to ensure they are tight
2.) Adjusted preload again per BC's website
3.) Spoke with a rep at BC who stated I should attempt to tighten the upper bolt - did this but the entire shaft to the coilover spins. (waiting on his response to this)
4.) Checked for wheel bearing issues by shaking the wheel whent he car is jacked up
5.) Had a shop look it over
6.) Checked for wheel vibration on the highway - smooth
What else can I do? Take it to Mitsubishi and get totally shafted with a HUGE bill? Im at a loss on what to check next but the sounds are getting progressively worse. I am almost tempted to drive until something breaks and then I will obviously know what it is. But then again I dont want something snapping in the suspension at 60+mph.
#2
#3
I'm not familiar with BC coils but are you on OEM top hats/strut tops...if thats what they are called?
When you checked all of your suspension bolts, did you also check the ball joints and tie rods and all oem rubber components for wear?
How many total miles on the chasis/suspension?
When you checked all of your suspension bolts, did you also check the ball joints and tie rods and all oem rubber components for wear?
How many total miles on the chasis/suspension?
#4
#5
I'm not familiar with BC coils but are you on OEM top hats/strut tops...if thats what they are called?
When you checked all of your suspension bolts, did you also check the ball joints and tie rods and all oem rubber components for wear?
How many total miles on the chasis/suspension?
When you checked all of your suspension bolts, did you also check the ball joints and tie rods and all oem rubber components for wear?
How many total miles on the chasis/suspension?
#6
You said you check the preload, but did you also make sure the perches are tight? Both upper and lower ones.
Check the torque on the mounting nuts, as well as the crown nut on the shock. There has to be a way to keep the shaft from rotating (My Ohlins use a allen to hold the shaft still.
Check the OEM bushings. Years ago, I had a terrible clunk, especially leaving from a standstill, or coming to a complete stop. Checked and checked everything. Finally, got my car in the air and had a friend also look. We found the inner bushing on the front LCA was bad. Replaced that, and the clunk was all gone.
Good luck.
Check the torque on the mounting nuts, as well as the crown nut on the shock. There has to be a way to keep the shaft from rotating (My Ohlins use a allen to hold the shaft still.
Check the OEM bushings. Years ago, I had a terrible clunk, especially leaving from a standstill, or coming to a complete stop. Checked and checked everything. Finally, got my car in the air and had a friend also look. We found the inner bushing on the front LCA was bad. Replaced that, and the clunk was all gone.
Good luck.
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#8
You said you check the preload, but did you also make sure the perches are tight? Both upper and lower ones.
Check the torque on the mounting nuts, as well as the crown nut on the shock. There has to be a way to keep the shaft from rotating (My Ohlins use a allen to hold the shaft still.
Check the OEM bushings. Years ago, I had a terrible clunk, especially leaving from a standstill, or coming to a complete stop. Checked and checked everything. Finally, got my car in the air and had a friend also look. We found the inner bushing on the front LCA was bad. Replaced that, and the clunk was all gone.
Good luck.
Check the torque on the mounting nuts, as well as the crown nut on the shock. There has to be a way to keep the shaft from rotating (My Ohlins use a allen to hold the shaft still.
Check the OEM bushings. Years ago, I had a terrible clunk, especially leaving from a standstill, or coming to a complete stop. Checked and checked everything. Finally, got my car in the air and had a friend also look. We found the inner bushing on the front LCA was bad. Replaced that, and the clunk was all gone.
Good luck.
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