Datatek
Well-Known Member
There are 2 or three coolant temperature sensors depending on year, all in a line under the manifold, one for the gauge, one for the EDC and the third one at the back of the engine, if fitted, is a thermal switch to operate the aircon fans when an overheat occurs.where abouts on the a 2.5dse 1995 engine is the coolant temp sensor been told i need a new one
You need to get the correct one for the year of your car and to know if it's the one for the gauge or the EDC
mutsnutz
Well-Known Member
There are 2 or three coolant temperature sensors depending on year, all in a line under the manifold, one for the gauge, one for the EDC and the third one at the back of the engine, if fitted, is a thermal switch to operate the aircon fans when an overheat occurs.
You need to get the correct one for the year of your car and to know if it's the one for the gauge or the EDC
are the coded so i get the right one
Datatek
Well-Known Member
The one at the back of the engine is for the aircon fans, not sure about the other 2, if he gets back with which sensor needs replacing I'll look it up.
Datatek
Well-Known Member
Different colours but need to know if its the one for the engine ECU or the dash gauge
Datatek
Well-Known Member
As you say, not helpfulAll RAVE gives us is this...
Not very helpful.
Datatek
Well-Known Member
So, if the gauge doesn't move, that's the gauge sensor and doesn't affect the engine temperature for the ECU.
I think your mech doesn't know what he's talking about. Have you thought the engine might actually be running cold because the thermostat is missing/stuck open or the viscous fan has seized?
mutsnutz
Well-Known Member
never thought about that il pop over to the local auto electrian who has the diagnostics and get it on his machine to check if its the sensors or not then once thats ruled out i can look at thermostat and viscous fan
Grit Valve
2000 4.6 Vouge
Front of engine air con middle ecu rear temp gauge
Last edited:
Front of engine air con middle ecu rear temp gauge
Not on a 1995 only two sensors on that. Gauge sensor and ECU sensor.
Grit Valve
2000 4.6 Vouge
Not on a 1995 only two sensors on that. Gauge sensor and ECU sensor.
Yes sorry no air con
Yes sorry no air con
I thought third sensor for aircon only came in in 1999. But my 1995 with aircon diagrams show it. But it's just another STC2253.
Datatek
Well-Known Member
Front of engine air con middle ecu rear temp gauge
Wrong! Front over FIP is engine ECU, centre is gauge, rear is aircon according to my book.
Certainly the one at the end of the head nearest the bulkhead is the aircon one and it's not present on my 96.
Grit Valve
2000 4.6 Vouge
Wrong! Front over FIP is engine ECU, centre is gauge, rear is aircon according to my book.
Fair enough I was going by what microcat says
Datatek
Well-Known Member
I think their picture is reversed somehow! I'm not 100% sure about the ECU/gauge positions as the drawings I have are pretty vague, but I'm certain about the third sensor for the fans as I have one car with and one without and I've tested the function. The 3rd sensor is just a thermal switch.
