Hi All-
4th Hummer H2 to come into my life- this is my second 06 fusion orange... Just finishing up on all the mechanicals and correcting what was done ****** up. I have one issue I cant seem to figure out- I need someone to put eyes on under the hood and see where the plug in that goes to the overflow bottle originates from- Its missing and the sensor is gone out of the coolant tank... My guess is the sensor loused up & instead of spending $50 on a new bottle - he/she cut the harness some where...
This leads to the mystery of under the airfilter box corner (towards firewall/AC lines corner) there is a square plug that has both sides of plug in tact & connected but is cut and taped up (see attached pics, my finger tips are on the cut/taped side))


- I am guessing this may have led at one point to the coolant bottle- however this plug has 6 wires off memory that were cut???
Hoping I can find someone ambitious enough to lift their hood and trace that coolant sensor wire for me..... I have looked online, at schematics, harnesses on ebay and I cant make sense of any of it.....
This is going to be my keeper for H2's- a southern truck with no frame rust, immaculate inside & out... just needed all the usual front end issues, leaks, Exhaust manifolds/studs resolved and the damn rear main seal (that I have yet to do)... she is a nice one, just need to resolve this issue......

Thanks in advance!!
Chris

 

I used this https://shop.advanceautoparts.com/p/...205/11071183-P it helped with a lot of my Leakes. I just add a new bottle after every oil change.

 

only need 2-wires to a coolant sensor. It appears more like an o2sensor connector to me. Post closeups of the connector also disconnected. Also helps to know the color of the wires, with tracers included?

 

right - I realize that with the coolant tank sensor, thats what is confusing.... unless there are 2 issues and not related......
Can you see where your plug goes to on either of these (the connector & the tank)??

Thanks-
Chris

 

Ok - just dawned on me , this could be the heated washer delete GM did years back.....
Now if I can nail down the coolant tank sensor....

 

What are the colors of your 6 wires(tracers included)?

 

I have the exact rig as yours. You are correct, that is the heated washer fluid delete. I had mine deleted by GM and they sent me $100. I took that money and purchased the updated AlphaTherm heated washer fluid kit. It is pretty neat to have it functioning.

 

I also think 2006 had no warning for low coolant- The stock overflow bottle had no sender, I had assumed it was molested.... I dont think this had a warning for low coolant in reservoir... owners manual made no reference to it either,, I think 2003 did tho? Mine is a 2006

I have been trying to find the GM retro kit from alphatherm- cant locate the GM specific replacement.... only the generic ones

 

AlphTherm Heated Wash Units

 

Sold out
Just got a reply back from A;lphaTherm