Is it possible to take temp sender wire for gauge at rear of head on 96 and older 4.0 and tie into newer style Cts .For temp gauge to function when newer 97 and up 4.0 motor/head has been swapped in ?

 

Yes it is

 

You can put the sender into the thermostat housing of the HO motor by extending the wire. I don't think the 97 and later sender is compatible with your gauge since the 2 prong unit for the 97 feeds the ECU, not the gauge.

 

Don't one wire from sensor just ground out sending signal thru ecm to gauge causing it to rise ? If old sender wires spliced into that would in not cause gauge to rise on 96 and down cluster ?

 

Who knows if they're calibrated the same or work the same?

 

That's what were trying to figure out theres a lot of times this issue arises after new motor installs .I cant find any thing about it .Whos the electrical guru here ?

 

Whos the member that sell upgrade battery cables here 590 something ?

 

Isn't there 2 connectors on the late model sensor?

 

www.kelleyswip.com

 

C-590 correct...nope 5-90

 

Some do some don't.

 

I gave you his website......

 

What are you trying to accomplish and with what?

 

I sent him a link to this to ask if he has any input .I now the cts control gauge,fan and mixture just wonder which wire does what.

 

Not unless you get a different type part.

The 1987-1996 sensor used there is a variable resistance, can't be used to drive a relay. You have to replace it with a temperature-driven SWITCH, and I can't think of any offhand that are threaded 1/8" NPT.

If a switch or sensor has ONE wire connected to it, it's self-grounding (PTFE and most RTV is OUT for sealing it - creates an insulating layer. Copper-bearing RTV is workable, and you can use never-seez - tighten to 1 flat past finger tight.

If a switch or sensor has TWO wires to it, that's usually the whole circuit (is for a switch, may be for a sensor,) and you can use whatever you like to seal it.

Is that what you wanted to know?