Purple wire

[GlennB4u]

What the heck is this wire for? It's in my forward engine harness, has a push on connector, but I have no clue what it's for.

 

[70aarcuda]

oem temperature sender

 

[MOPARMITCH]

Engine temp sender ? What engine?

 

[nm9stheham]

If it is purple and in the engine harness along the passenger side valve cover, then it is the temp sensor. The original temp sensors had a screw thread terminal.

But the wire circled above is not in the engine harness, and is from the K terminal; it is from the brake warning switch down on the combination warning switch/proportioning valve in front of the firewall on on the driver's side.

 

[GlennB4u]

I have the temp sensor plugged in..

This one comes out of the forward harness on the drivers side with the front lights...

 

[GlennB4u]

If it is purple and in the engine harness along the passenger side valve cover, then it is the temp sensor. The original temp sensors had a screw thread terminal.

But the wire circled above is not in the engine harness, and is from the K terminal; it is from the brake warning switch down on the combination warning switch/proportioning valve in front of the firewall on on the driver's side.

Thank you... this makes sense.