Vacuum Switch?

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04-09-2013, 09:41 AM

Sandman8105

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Vacuum Switch?

When the code reader throws a code that says idle/decel vacuum switch is constantly closed, what does that mean and what vacuum switch is it talking about?

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04-09-2013, 08:10 PM

dieselgirl86

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Year of the truck and engine

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04-11-2013, 07:50 AM

Sandman8105

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It is in my signature. 94 7.3 idi Turbo. Under that code, one line on the code reader says idle/decel vacuum switch is closed constantly and another line says wide open throttle vacuum switch closed constantly.

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