Ticking
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 6,779
Likes: 2
From: NCM Lifetime Member
St. Jude Donor '12-'13-'14-'15-'16-'17-'18-‘19-'20
Ticking
I just picked up my new 2007 coupe MN6 and have driven 83 miles so far.
This quiet ticking sound comes from the engine compartment, is regular, and increases with increasing RPM. It's not a clicking nor a hard clunking. It is a quieter ticking that is most loud from about 1000 to 2,500 RPM. I can hear it especially well in second gear at about 20 through 30 MPH.
It seems to diminish over about 40 MPH in third gear, but perhaps the increased background noises mask it.
It's not really loud and most "normal" people probably wouldn't even hear it at all.
Is this one of those "Oh ya, that's normal. It's the __________". Could it be the AIR pump or something like that? Does an LS2 even have an AIR pump? Never mind... I withdraw that question. But I am curious about this ticking.
Thanks.
This quiet ticking sound comes from the engine compartment, is regular, and increases with increasing RPM. It's not a clicking nor a hard clunking. It is a quieter ticking that is most loud from about 1000 to 2,500 RPM. I can hear it especially well in second gear at about 20 through 30 MPH.
It seems to diminish over about 40 MPH in third gear, but perhaps the increased background noises mask it.
It's not really loud and most "normal" people probably wouldn't even hear it at all.
Is this one of those "Oh ya, that's normal. It's the __________". Could it be the AIR pump or something like that? Does an LS2 even have an AIR pump? Never mind... I withdraw that question. But I am curious about this ticking.
Thanks.
Drifting
Joined: Jun 2002
Posts: 1,682
Likes: 3
I just picked up my new 2007 coupe MN6 and have driven 83 miles so far.
This quiet ticking sound comes from the engine compartment, is regular, and increases with increasing RPM. It's not a clicking nor a hard clunking. It is a quieter ticking that is most loud from about 1000 to 2,500 RPM. I can hear it especially well in second gear at about 20 through 30 MPH.
It seems to diminish over about 40 MPH in third gear, but perhaps the increased background noises mask it.
It's not really loud and most "normal" people probably wouldn't even hear it at all.
Is this one of those "Oh ya, that's normal. It's the __________". Could it be the AIR pump or something like that? Does an LS2 even have an AIR pump? Never mind... I withdraw that question. But I am curious about this ticking.
Thanks.
This quiet ticking sound comes from the engine compartment, is regular, and increases with increasing RPM. It's not a clicking nor a hard clunking. It is a quieter ticking that is most loud from about 1000 to 2,500 RPM. I can hear it especially well in second gear at about 20 through 30 MPH.
It seems to diminish over about 40 MPH in third gear, but perhaps the increased background noises mask it.
It's not really loud and most "normal" people probably wouldn't even hear it at all.
Is this one of those "Oh ya, that's normal. It's the __________". Could it be the AIR pump or something like that? Does an LS2 even have an AIR pump? Never mind... I withdraw that question. But I am curious about this ticking.
Thanks.
Thread Starter
Le Mans Master
Joined: Aug 2005
Posts: 6,779
Likes: 2
From: NCM Lifetime Member
St. Jude Donor '12-'13-'14-'15-'16-'17-'18-‘19-'20
I hear a tick at a rate that seems to be once per each full 8 cylinder firing cycle.
So it would be only one injector of the eight?
Has anyone else experienced this?
So it would be only one injector of the eight?
Has anyone else experienced this?
