So I am going through my engine today and I noticed a senor plug laying on the bottom of the floor. I inspect the engine to try to figure out where this came from and I noticed it is on the water pump housing.

Anyone know where or what I can do to fix this? Here is a picture I took from my phone.

 

That is the ECU's water temp sender. Might want to just find a good used one, they rarely fail and are a dime a dozen. You will definitely need it, though!

Dale

 

What is the black sensor below the temp sensor?

 

I have a bunch of good extras if you need one. The black sensor is the fan thermo switch.

 

might as well upgrade the fan switch while its out there too... my water temp sensor went out a while back and it caused my fd to not start