Trying to identify sensor on 1994 Chevy Astro Van (4.3L)
May 19th, 2017, 9:16 PM
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Trying to identify sensor on 1994 Chevy Astro Van (4.3L)
Sensor is is on left engine block (when sitting inside the van), above the spark plugs, with a blue harness. (See attached photo -it's the sensor on top). I have not been able to identify this sensor anywhere else in my Internet search, so I'm hoping you guys can do it!
Last edited by AstroBoy94; May 19th, 2017 at 9:21 PM. Reason: Add another photo
May 19th, 2017, 9:36 PM
#2
most one wire sensors are temp or pressure sensors. since is so close to the knock sensor its probably a coolant temp sensor or temp switch....unscrew it and seeif coolant comes out
