2000 p38 4.6 ect engine coolant temp sensor reads different

klf400 said:

yes correct thor engine , dual output sensor
i looked at engine temp on my faultmate extreme and engine temp was 88 deg c and on the temp gauge on dash at the top of the blue so
not sure if this is an issue or not

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klf400 said:

mmmmm seems that way , i would assume that 1/2 way on the gauge is normal operating temp and not top of the blue ,
you would expect a new genuine part to be right but i dont want to be misled by a gauge that reads lower than it should be

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klf400 said:

yes wammers your right why didnt i think of that -i dont think it will offer any testing on the sensor accuracy though , just seems odd the 2 give different readings may end up putting the old one back in

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klf400 said:

hi guys
as an on going starting issue on my p38 in another thread i changed the ect sensor for a brand new original
as i thought it maybe my problem
well it did not seem to be but i have noticed the new sensor reads lower than the old one , the new sensor reads just at the top of the blue segment on the gauge but the old one half way between blue and red , anyone else had this ? seems odd but maybe they loose their accuracy over the years

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crashmctavish said:

I have exactly the same issue old probe read correctly tried two new ones that both read 120c with gauge at 40% engine is not at 120c

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