Just a quick pictorial on a how to rig up a temporary solution to a shutoff valve malfunctioning due to vacuum leaks in your system. This will only work if your shutoff valve actually holds vacuum, otherwise you will still have to lift up the hood and press the shutdown switch.



- Connect a vacuum tube from the shutoff valve (red tube).



- Then run the vacuum tube into the cabin



- And connect to a hand operated vacuum pump (or just suck into the tube if you don't have a vac pump, although I recommend getting one as soon as possible). Doesn't need to be a lot of vacuum, 10-20hg should do it.

This should help those of us that have vacuum issues and don't want to open our hoods every time we need to shut the engine down.

Good luck and happy wrenching!

Mick

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1980 300SD, 190K miles -- Soon to be on WVO
1989 GMC Suburban 6.2L diesel on WVO and B99