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International Automotive Technicians Network
Re: 1990 gmc safari van
Posted to Technical Discussion Forum on 4/24/2006

im sorry that i didnt share everything that we have tried on this van. the first scan tool was a tech one,,second scan tool a modis. both show no [...] unplugged most everything on the engine including the oil switch. if you jumper a to b at the aldl you will ... Login to read more.