How to dismantle, clean and reassemble EGR valve on Vauxhall Vectra 1.9 cdti 150 SRi ecotec. Identical procedure for other 1.9 cdti & 1.7 cdti GM engines Corsa, Astra, Zafira, Signum, Saab 9-3 tid, Fiat, Alfa Romeo jtd. Make sure not to lose gaskets between EGR valve and intercooler as well as gasket between EGR valve and EGR Pipe.
