Tapping noise
Thread Starter
Safety Car
Joined: Dec 2006
Posts: 3,936
Likes: 1,920
From: NC
2025 Corvette of the Year Finalist - Unmodified
2024 C7 of the Year Winner - Unmodified
2023 C7 of the Year Finalist - Unmodified
2019 C6 of Year Finalist (performance mods)
Tapping noise
I want to hear from some others who have LS7s and have heard tapping noise from the valve train. My car is a 09Z with less than 1K miles on it. I have noticed this noise a few times and it sounds like a lifter tapping. Only have noticed it at or near idle when warmed up. Most recently after a short drive I pushed in the clutch to coast to a stop and back into my driveway. I could clearly hear the tapping and it lasted about 20-30 seconds and went away as I idled into the driveway. Other times were similar. This is not the normal sewing machine sound that all the LSX motors seem to have, but a louder tapping noise. Again it is random in nature I can't reproduce it when I try. I know the dealer is not going to be able to hear it if I take it in. Do not have a dealer I trust in the area anyway. Has anyone else had this noise occur? Do I just drive it and not worry about it? Its under warranty and I could just have it fixed if it breaks.
Posted this in the Z06 section as well. Any feedback appreciated.
Posted this in the Z06 section as well. Any feedback appreciated.
Thread Starter
Safety Car
Joined: Dec 2006
Posts: 3,936
Likes: 1,920
From: NC
2025 Corvette of the Year Finalist - Unmodified
2024 C7 of the Year Winner - Unmodified
2023 C7 of the Year Finalist - Unmodified
2019 C6 of Year Finalist (performance mods)
I don't think so. One it occurs after warmed up and two it seems to sound more like from the valve train area. I have had two LS6 cars and they both had the sewing machine sound but this is different. It sounds more like a collapsed lifter would sound. But as I stated it only last for a few seconds.
