I need to know what this part is I can't figure it out, looks like something is supposed to go there but I am not sure. Sorry for the bad image quality but it is the best I can do. The location of this part is above where the spark plugs are I believe it is in between 2 and 4 please help it is smoking and I don't know why?

 

cant see it is there any chance we can get a better picture ?

also some more information on your truck

 

no way we can tell what that is man.....get a light and get a better pic.

 

hope these are better my camera really sucks but I did get a brighter light also more info 1989 chevy s10 blazer 4.3 v6 4wd automatic

 

Not too much better...Where exactly is it? Details is everything. wires plugged into it? color,whats it hooked too etc




Edit,almost looks like the coolant temp sensor. is it on the passenger side,screwed into the block of the engine? Only thing that puzzles me is i see no wire,and where the black round part is it looks like its resting against the bottom part. I doubt its the coolant temp sensor.

 

i'm gonna go out on a limb on this one... your temp guage doesn't work anymore? if so it's your sensor thats either leaking because its bad or somehow melting against the manifold?


(the shiny thing near the wrench)

 

Im wondering if its leaking coolant on the exhaust manifold and causing it to smoke,Or leaking just enough on the block and the waters evaporating off the block. Coolant level low?

 

Try taking some partially zoomed in pictures. So we can get a better perspective. Closer isn't always better.

 

Sorry but my camera really really sucks and yes that was the part I was talking about the shiny one with the bright gold also I am missing the wire for it so that would be the coolant temperature sensor and sender correct? I have looked in my Hanes Repair Manual and I can find out how to get the sensor off and install the new one but the sender I can't find anything on where it plugs into after it comes from the sensor so I would install a new sensor plug the sender into the sensor but from there where does it go? Thank you all for your help and sorry I am such a PITA lol

 

that wire should be somewhere around there. you have 2 temp sensors. that one you see,and one beside the top radiator hose. the one beside the hose tells the computer if the engines hot or cold,and adjusts cold start fuel/air mix ratios. the one you see now is only for the temp gauge. you simple put a wrench on the brass part of it,unscrew it,and screw in the new one. When you take the old one out a good bit of coolant will dump out. so have a extra gallon of it sitting around.