Most 606 owners have expirienced some increased inj clatter after replacing DV seals.

DP helped mine. Time (500-1000 miles) helps others; a combination of the two seemed to resolve the problem for me.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)