tapping sound
Thread Starter
Racer
Joined: Nov 2014
Posts: 269
Likes: 1
From: Flemington New Jersey
tapping sound
Hi all
This one has me thinking exhaust but I am not sure. I have a 76 C3 L48 with 24K original miles. There is a tapping sound when driving that seems to come from the passenger side, middle of the car.
There is no sound at idle and it does not increase with RPMs but does go away if you take your foot off the throttle.
All the pipes look good but I cant see the top of the cat. The exhaust system is the original.
Any suggestions on what to check?
Thanks!
This one has me thinking exhaust but I am not sure. I have a 76 C3 L48 with 24K original miles. There is a tapping sound when driving that seems to come from the passenger side, middle of the car.
There is no sound at idle and it does not increase with RPMs but does go away if you take your foot off the throttle.
All the pipes look good but I cant see the top of the cat. The exhaust system is the original.
Any suggestions on what to check?
Thanks!
Thread Starter
Racer
Joined: Nov 2014
Posts: 269
Likes: 1
From: Flemington New Jersey
Thread Starter
Racer
Joined: Nov 2014
Posts: 269
Likes: 1
From: Flemington New Jersey
Yes sir. All is good. It pretty soft tap which made me think exhaust. Really has me baffled. A fuel pump etc would be heard at idle or at least hi rpm in park correct? Mine is quiet when not moving.
Last edited by Ike27; Jun 13, 2016 at 03:20 PM.
Zen Vet Master Level VII
Joined: Mar 2016
Posts: 5,218
Likes: 1,174
From: Southlake, TX
Is there a way to post a video with sound?
If the sound is on the "tinny' side I'd guess exhaust.
However, check the emergency brake cable as it could have come loose over time and gets sloppy at speed.
If the sound is on the "tinny' side I'd guess exhaust.
However, check the emergency brake cable as it could have come loose over time and gets sloppy at speed.
Last edited by billschroeder5842; Jun 13, 2016 at 04:45 PM.
Thread Starter
Racer
Joined: Nov 2014
Posts: 269
Likes: 1
From: Flemington New Jersey
Its a rhythmic sounds deeper like exhaust. In park, revving the engine produces no tapping. Only under acceleration when moving. I'll try and record it but no to sure it will be captured.
I checked the brake cable and its tight.
I tried to capture the sound but its too faint to be heard on the camera. Its only during acceleration. When I take my foot off the accelerator it stops, when I shift into Neutral whole moving and revving the engine, no tick.
I checked the brake cable and its tight.
I tried to capture the sound but its too faint to be heard on the camera. Its only during acceleration. When I take my foot off the accelerator it stops, when I shift into Neutral whole moving and revving the engine, no tick.
Last edited by Ike27; Jun 13, 2016 at 06:30 PM.
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Thread Starter
Racer
Joined: Nov 2014
Posts: 269
Likes: 1
From: Flemington New Jersey