Why does my 2001 Impreza RS clutch shudder when starting off in low gear..........sometimes? It has done it since 2002. A new clutch lasted about 2 weeks before it started again. I'm about to install in another EJ25 from a 2001 Forester with 58K miles on it and new head gaskets in it. I'll install a new clutch also. Any words of wisdon.