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Where is the oxygen sensor unit located on a 1994 Blazer with a 4.3 Vortec engine?
Wiki User
∙ 18y ago
On my 93 it is right after the pipes meet from the left and right heads, it is pointed up toward the floorboard. Warm the pipe up a little to make it easier to remove by running the engine for a couple of minutes prior to removing the sensor.
Wiki User
∙ 18y ago
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