Not Sure it had ever been done before. From the looks of the backside I would say NO!! Used CRC Choke and throttle Body cleaner. Gunk came off pretty easy with the help of an old toothbrush.
Heres the throttle body on the truck
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Heres the Front Side
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Heres the backside. This was really gunked up.
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Heres the cleaned TB back on the truck
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Heres the throttle body on the truck
View attachment 16812
Heres the Front Side
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Heres the backside. This was really gunked up.
View attachment 16814
Heres the cleaned TB back on the truck
View attachment 16815