Engine Ticking Noise
09-17-2023, 08:32 PM
#361
Rennlist Member
I went for a 100 mile drive this afternoon driving on mostly backroads in NH and paid attention to the sound from the engine/exhaust. I only heard the chirping/ticking noise at idle or when I came to stop. At speed, all I could hear was the muted exhaust note. Nothing untoward or unpleasant to my ears. As the revs and speeds picked up, I couldn't hear the chirping/ticking which is markedly present and noticeable at idle.
09-18-2023, 04:31 AM
#362
The following users liked this post:
GTSPYDER23 (03-25-2024)
09-18-2023, 11:15 PM
#364
On July 11, Porsche put out a service bulletin addressing this issue. A lot of what they say correlates to all the discussion here. However, it is not lifters but rather a harmonic that sets up in the fuel collection pipe as a result of the use of piezo injectors. Read what they say here. The link is from the filing at the NHTSB site. The fix is an attempt to change the fuel collection pipe harmonic by a small increment with a loosening/tightening cycle or alternately by replacing them with new parts. It is an expensive fix (the pipes are >$1k each) with a lot of shop time involved as well.
My vehicle goes in tomorrow for its one-year service and I've asked them to address this issue. I suspect I will have to attempt a few times to get it resolved since the service bulletin favors having the advisor explain that this is normal behavior and we need comparison cars which are in short supply here. We will see.
My vehicle goes in tomorrow for its one-year service and I've asked them to address this issue. I suspect I will have to attempt a few times to get it resolved since the service bulletin favors having the advisor explain that this is normal behavior and we need comparison cars which are in short supply here. We will see.
09-19-2023, 01:13 AM
#365
RL Community Team
Rennlist Member
Rennlist Member
The following 4 users liked this post by ipse dixit:
09-22-2023, 04:05 AM
#368
Here, I recorded some clips.
These are the random chirps I talked about and have been discussed here with @h_4711 (longer_drive1 and longer_drive2).
Interestingly, they aren't there when oil reaches 90 degrees but after a few mile drive they're almost always audible. They go away when increasing RPM - but not always.
After finishing recordingsn I did some more testing (changing rpm, opening/closing the exhaust valves) and they were gone.
Must be some environmental/OPF related stuff.
These are the random chirps I talked about and have been discussed here with @h_4711 (longer_drive1 and longer_drive2).
Interestingly, they aren't there when oil reaches 90 degrees but after a few mile drive they're almost always audible. They go away when increasing RPM - but not always.
After finishing recordingsn I did some more testing (changing rpm, opening/closing the exhaust valves) and they were gone.
Must be some environmental/OPF related stuff.
09-23-2023, 12:17 AM
#369
Here, I recorded some clips.
These are the random chirps I talked about and have been discussed here with @h_4711 (longer_drive1 and longer_drive2).
Interestingly, they aren't there when oil reaches 90 degrees but after a few mile drive they're almost always audible. They go away when increasing RPM - but not always.
After finishing recordingsn I did some more testing (changing rpm, opening/closing the exhaust valves) and they were gone.
Must be some environmental/OPF related stuff.
These are the random chirps I talked about and have been discussed here with @h_4711 (longer_drive1 and longer_drive2).
Interestingly, they aren't there when oil reaches 90 degrees but after a few mile drive they're almost always audible. They go away when increasing RPM - but not always.
After finishing recordingsn I did some more testing (changing rpm, opening/closing the exhaust valves) and they were gone.
Must be some environmental/OPF related stuff.
09-25-2023, 03:15 PM
#372
Racer
I went for a 100 mile drive this afternoon driving on mostly backroads in NH and paid attention to the sound from the engine/exhaust. I only heard the chirping/ticking noise at idle or when I came to stop. At speed, all I could hear was the muted exhaust note. Nothing untoward or unpleasant to my ears. As the revs and speeds picked up, I couldn't hear the chirping/ticking which is markedly present and noticeable at idle.
09-25-2023, 03:25 PM
#373
Rennlist Member
Some people buy classic cars even classic Porsche's for the sounds they produce.. sounds from everything that moves suspension/engine and etc, it adds character..
The injectors click on modern cars and people lose their minds lol
The injectors click on modern cars and people lose their minds lol
