what is this on my engine block

[mattman4x4]

Hi
this is on my engine block between the 1 and 3 cylinder, help what is it?

 

[dremu]

Hi
this is on my engine block between the 1 and 3 cylinder, help what is it?

Temperature sender for the gauge cluster.

Should be a green wire somewhere for it.

-- A

 

[buefchris]

sending unit for water temp .

 

[mattman4x4]

Well it has a black wire, and I hooked it up and the temp gauge on the dash is not working...How do I tell if its the gauge, wiering, or sender?
thanks

 

[DEMON44]

BTW, thats not in the block....its in the head.

 

[dyeager535]

Typically that wire is green. Have the truck off, wire off, then turn the key on, note where the gauge is, then apply the wire while the engine is in "run". (doesn't need to be running) If you get no movement, it's likely something in the gauge wiring or the gauge.

Does it have the right connector on it for that "nailhead" on the sender?

 

[mattman4x4]

Thanks for pointing out my error, it is the head on the driver side. Sometimes I type before I think!
Mattman4x4