Slight scraping noise or rattle during acceleration
01-29-2018, 02:40 PM
#1
AutoX
Thread Starter
Join Date: Apr 2017
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
Slight scraping noise or rattle during acceleration
I just noticed this this morning when I accelerate I hear a slight very faint scraping noise or metallic grinding noise almost as if something is dragging on the ground. I only can hear it during normal in city driving. When I have the sports exhaust on it completely goes away. Not sure if I should be worried or not. If I posting in the wrong forum please let me know. I have a 07 Targa around 72k miles. Maybe I’m over reacting but I’m afraid of it leading to something bad. Car runs fine and is mechanically sound it’s just that little noise that worries me.
01-30-2018, 07:56 AM
#2
RL Community Team
Rennlist Member
Rennlist Member
I just noticed this this morning when I accelerate I hear a slight very faint scraping noise or metallic grinding noise almost as if something is dragging on the ground. I can hear it during normal in city driving. When I have the sports exhaust on it completely goes away. Not sure if I should be worried or not. If I posting in the wrong forum please let me know. I have a 07 Targa around 72k miles. Maybe I’m over reacting but I’m afraid of it leading to something bad. Car runs fine and is mechanically sound it’s just that little noise that worries me.
1. can you hear it when you're rolling, like in neutral or with the clutch in and coasting, or only when accelerating
2. If you open the engine lid while idling, do you hear a similar sound. Could be a worn pulley or bearing.
3. If you gave one of those infrared thermometers, after a drive, shoot the rotors and see if one is a noticeably higher temperature which would mean you might have a sticking caliper and you can hear the pads dragging a little
4. Might have a pebble stuck somewhere that's scraping a rotor. It will eventually wear down and fall out
01-30-2018, 08:27 AM
#3
Instructor
I have a similar "rubbing" noise, it only occurs under throttle, not while coasting or idling. My Indy thinks it's the rear axle shaft (lack of lube). Axle shafts I'm told are not serviceable. Guess it happens but I'm told it's rare. Car has 52k KMs on it.
Will address it in the spring and may get a second opinion. The part is $1200 cdn with a couple hours labor.
Will address it in the spring and may get a second opinion. The part is $1200 cdn with a couple hours labor.
01-30-2018, 11:26 AM
#4
AutoX
Thread Starter
Join Date: Apr 2017
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
A couple ideas:
1. can you hear it when you're rolling, like in neutral or with the clutch in and coasting, or only when accelerating
2. If you open the engine lid while idling, do you hear a similar sound. Could be a worn pulley or bearing.
3. If you gave one of those infrared thermometers, after a drive, shoot the rotors and see if one is a noticeably higher temperature which would mean you might have a sticking caliper and you can hear the pads dragging a little
4. Might have a pebble stuck somewhere that's scraping a rotor. It will eventually wear down and fall out
1. can you hear it when you're rolling, like in neutral or with the clutch in and coasting, or only when accelerating
2. If you open the engine lid while idling, do you hear a similar sound. Could be a worn pulley or bearing.
3. If you gave one of those infrared thermometers, after a drive, shoot the rotors and see if one is a noticeably higher temperature which would mean you might have a sticking caliper and you can hear the pads dragging a little
4. Might have a pebble stuck somewhere that's scraping a rotor. It will eventually wear down and fall out
01-30-2018, 11:28 AM
#5
AutoX
Thread Starter
Join Date: Apr 2017
Posts: 12
Likes: 0
Received 0 Likes
on
0 Posts
I have a similar "rubbing" noise, it only occurs under throttle, not while coasting or idling. My Indy thinks it's the rear axle shaft (lack of lube). Axle shafts I'm told are not serviceable. Guess it happens but I'm told it's rare. Car has 52k KMs on it.
Will address it in the spring and may get a second opinion. The part is $1200 cdn with a couple hours labor.
Will address it in the spring and may get a second opinion. The part is $1200 cdn with a couple hours labor.
07-08-2023, 04:09 PM
#6
Rennlist Member
Did anyone figure it out? I had this only occurring just as I approached 3k RPM for about 0.5 seconds. Took it to the shop, they said it was the exhaust tips rattling (car has Soul Performance tips) and they bent a piece of it down and it stopped for a while. They said if it came back, swap back for the OEM exhaust tips. Now it’s back, and occurs at various RPMs, for 0.5-1s. Wondering if it could be something else…
2010 C2S 6MT
2010 C2S 6MT