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- 01 Jan 2013, 21:28
- Forum: Volvo S40 & V40 2000-2004
- Topic: pinging on s40 t4
- Replies: 0
- Views: 362
pinging on s40 t4
Engine sounds like pinging under load, goes away at normal road speed. I use 95 octain fuel. also when A.C. is on idle varies and seems to surge.