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- 2022 Nov 30, 14:14
- Forum: Speed Shop & Engine Talk
- Topic: 4.6 DOHC Noise
- Replies: 9
- Views: 4710
Re: 4.6 DOHC Noise
I had PVC related whistling at idle issues as well. Strange sound. Pull PVC hose and noise goes away. still have not figured out the exact root cause. Probably gasket somewhere with a tiny leak.