which sensor

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mutsnutz said:
where abouts on the a 2.5dse 1995 engine is the coolant temp sensor been told i need a new one :eek:
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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:)
 
Datatek said:
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:)
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are the coded so i get the right one
 
All RAVE gives us is this...

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Not very helpful.
 

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its the one that thinks engine is cold and puts extra fuel in on starting is all he said . I have noticed my temp gauge doesn't go above the blue so perhaps if i just changed them both im bound to get it right
 
mutsnutz said:
its the one that thinks engine is cold and puts extra fuel in on starting is all he said . I have noticed my temp gauge doesn't go above the blue so perhaps if i just changed them both im bound to get it right
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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?
 
Datatek said:
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?
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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
 
Datatek said:
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.
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Fair enough I was going by what microcat says
 
defender300td1 said:
Fair enough I was going by what microcat says
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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.
 
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