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im chasing what feels like a fuel issue but may not be. I changed the fuel filter and am now changing plugs and wires. when I was under the car doing the plugs I saw this guy hanging there. this is under the passenger side over the starter. there is a brass plug screwed into the block. maybe a knock sensor?
maybe a knock sensor? I believe it goes there. im not sure how it connects though.
im chasing what feels like a fuel issue but may not be. I changed the fuel filter and am now changing plugs and wires. when I was under the car doing the plugs I saw this guy hanging there. this is under the passenger side over the starter. there is a brass plug screwed into the block. maybe a knock sensor?
maybe a knock sensor? I believe it goes there. im not sure how it connects though.
If you look at the picture supplied by the original poster , in the area of the back of the starter motor (which faces the front of the car) you'll see that the knock sensor does have a very similar connector already plugged into it . So if the knock sensor is already plugged in , that hanging connector has to be for the temperature switch for the radiator fan , since both units use a nearly identical looking connector (irrespective of the color of the plastic , a close look will reveal that the connectors are in fact pretty much the same) .
PS , the biggest clue of it being for the electric radiator fan is that is has a green with white stripe wire attached to it , which the wiring diagrams indicate belongs to the fan ......
Last edited by OrangeBird; Oct 10, 2018 at 08:01 AM.
I ordered a new fan switch . my wife took the car out today and it overheated. I hope it didn't do any damage I will install the fan switch tomorrow and go from there.
You can see the knock sensor sitting there, all plugged in. Definitely not that.
Fan sw goes in the head between the #6 & #8 spark plugs.
I'm guessing your car has suffered a motor swap (sodomy) somewhere in its growing-up pains, possibly along with some other "improvements" of whatever sort?
nope. its still the original 305 tbi motor. very few improvements either. pretty original car. its just old and needs some love. im slowly bringing it back
I agree that that plug is likey for the coolng fan.looks famaliar.
Please note that the fan switch has nothing to do with the gauge on the dashboard
which is controlled by a seperate sensor typically on the driver side of the block and has
only one wire near cyl 3.
Just saying as in another thread you mentioned on engine startup you saw 220°F on the gauge but the engine felt cool.
Also you mention above that you were told it overheated. Per the gauge or actually boiled over?
2 different things. Might be a good thing to check that sensor and clean up the connection in any case.
Hope that helps
Last edited by TAbracadabra; Oct 14, 2018 at 05:33 AM.
Reason: Correct caps and add detail
