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the fuel pressure regulator is located under the upper intake. with the upper intake removed you will see it on the passenger side it is attached to the fuel metering unit it has 2 star screws holding it on.when you buy a new regulator it should come with the special star bit. hope this helps.

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18y ago
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Q: Where is the fuel pressure regulator on a 1994 Chevy S10 Blazer 4.3L?
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