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Can anyone please help identify what this sensor is/does. It is in the back of the block on the passenger side. I am overhauling a 1991 F250 5.0, fuel injected, 4wd, single cab with automatic transmission. I pulled the motor to rebuild after #1 & #5 rod bearings spun on the way home from buying it. The part # in the connector is FS3B-14489-U. I cannot find that number anywhere, nor can a few parts stores. I cannot locate the original sensor and it may have been removed when it was in the shop getting milled.
Last edited by Rancherojef; Jul 29, 2021 at 09:51 AM.
Reason: More info
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