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IAC Gasket Question

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Old Oct 20, 2021 | 05:34 PM
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IAC Gasket Question

A few months ago I had purchased a Motorcraft IAC Valve and Motorcraft paper gasket. When I removed the old original IAC, there was no paper gasket. There was however a rubberized o-ring style gasket which was inlaid onto the throttle body. I replaced the IAC valve without the paper gasket. I am now wondering if that is correct or not. Anyone else use both the paper and rubber, or just one or the other?
 
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Old Oct 21, 2021 | 04:50 AM
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I'd think simply replacing what you found---if it was original from the factory--would be the best route.
 
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Old Oct 21, 2021 | 12:10 PM
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Ok fair enough...

I have found that with other gaskets on vehicles, you should use one or the other, not both. I was just confused since it appears they had changed the design at some point.
 
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