I just picked up my '86 'Burb and after sitting for 1 1/2 years, (158k), it runs OK. Banks sidewinder is fun, buuutttttttt, it doesn't turn off when you turn the key backwards. Usaually a few flicks of the key, and she dies. But last night, no luck. I finally figured out to pull the 12g. red(?) wire off the top of the pump. Did it again when I got home. The radio and warning lights work as if the switch (top of steering column) is doing its job. Seatbelt buzzer was cycling etc. I believe the fuel cut-off solenoid is sticking. Maybe not, pulling power works instantly, two electric contacts on ign. switch? Any ideas???