Join Date: Aug 2017
Location: North Georgia, USA
Racer-X is offline
Re: Water Temperature Sensor Functionality
The correct drive for the factory plugs is a 5/16 square plug bit.
Did the 2000s have the sensor in the driver's side head? or by the thermostat?
I know the 1996-1997 had it by the thermostat. I'm sure the non-EGR 2003s had it in the driver's side head. Not sure when in the middle there was the change.
And it's a single 2 wire sensor. I don't honestly remember if both wires go to the PCM and the PCM runs the gauge, or if there's two separate sensors in it, one for the PCM and one for the gauge, with two separate wires (using the head/block as ground).
Also, if you have a plug in the driver's side head, check the passenger side head and make sure you don't have an open hole there.
Every machine is a smoke machine if you operate it wrong enough.