2010 450h making low level grunt sound
11-20-20, 10:52 PM
#1
Pole Position
Thread Starter
2010 450h making low level grunt sound
I can't specifically describe the sound. It's not loud. It doesn't come on bumps or while braking. It comes while driving at lower speeds. There's no vibration or shaking at any speeds. Took the car to my mechanic and he couldn't identify the source. It seems to come from the lower left hand side. Like under the feet.
11-23-20, 07:04 AM
#4
Racer
Does sound pulsate? Change with speed? Related to rotation? Related to ambient temperature, operating temperature?
Things that come to mind for me: Brakes (sticky caliper, minor rubbing), wheel bearing worn, hard tire (rubber getting older and more brittle, less round), strut (Yes, I've heard struts make noise flying straight and level when they are slightly damaged). If the issue is minor and rotation is slower then they could be more noticeable but as speed increases, road and wind noise increases and as rotation increases so does the frequency of sound sometimes also making it harder to hear going faster.
Otherwise, my guess would be one of : aardvarks, baboons, beavers, bears, bobcats, caribous, cats, cheetahs, chimps, chipmunks, cougars, coyotes, dingos, dogs, or ?
Things that come to mind for me: Brakes (sticky caliper, minor rubbing), wheel bearing worn, hard tire (rubber getting older and more brittle, less round), strut (Yes, I've heard struts make noise flying straight and level when they are slightly damaged). If the issue is minor and rotation is slower then they could be more noticeable but as speed increases, road and wind noise increases and as rotation increases so does the frequency of sound sometimes also making it harder to hear going faster.
Otherwise, my guess would be one of : aardvarks, baboons, beavers, bears, bobcats, caribous, cats, cheetahs, chimps, chipmunks, cougars, coyotes, dingos, dogs, or ?
11-23-20, 07:43 AM
#5
Pole Position
Thread Starter
Does sound pulsate? Change with speed? Related to rotation? Related to ambient temperature, operating temperature?
Things that come to mind for me: Brakes (sticky caliper, minor rubbing), wheel bearing worn, hard tire (rubber getting older and more brittle, less round), strut (Yes, I've heard struts make noise flying straight and level when they are slightly damaged). If the issue is minor and rotation is slower then they could be more noticeable but as speed increases, road and wind noise increases and as rotation increases so does the frequency of sound sometimes also making it harder to hear going faster.
Otherwise, my guess would be one of : aardvarks, baboons, beavers, bears, bobcats, caribous, cats, cheetahs, chimps, chipmunks, cougars, coyotes, dingos, dogs, or ?
Things that come to mind for me: Brakes (sticky caliper, minor rubbing), wheel bearing worn, hard tire (rubber getting older and more brittle, less round), strut (Yes, I've heard struts make noise flying straight and level when they are slightly damaged). If the issue is minor and rotation is slower then they could be more noticeable but as speed increases, road and wind noise increases and as rotation increases so does the frequency of sound sometimes also making it harder to hear going faster.
Otherwise, my guess would be one of : aardvarks, baboons, beavers, bears, bobcats, caribous, cats, cheetahs, chimps, chipmunks, cougars, coyotes, dingos, dogs, or ?
i failed to add that the shop replaced my lower control arms. They're going to take it apart today and see what's wrong.
Of all the possible other sources? I can safely eliminate everyone except cats
but I'm glad you've sorted your issue!.
01-13-21, 02:37 PM
#9
Pole Position
Thread Starter
Yes I changed the mounts and Struts on both sides.
The following users liked this post:
tempestv8 (01-13-21)
Thread
Thread Starter
Forum
Replies
Last Post
Blaque Diamond Wheels
CL Vendor Products for RC
7
11-30-20 05:42 PM