Cooling Fans

[Gary406]

my cooling fans will not stop

engine is running at normal temp. but fans will not stop when ignition is on.

any ideas ?

[steve_earwig]

Coolant temp sensor dead, wiring disconnected, relay stuck closed.

[Gary406]

i will go for the sensor 1st .

were is this located ste ?

[Gary406]

could it be number 14 ? thats the temp sensor. this is located at the side of my fuel filter housing. were the main pipe runs into the radiator

[steve_earwig]

It's one of them yes I think it's the blue one...

[tadunce]

Its brown one

[steve_earwig]

Yeah, sorry, looks like you're right - viewtopic.php?f=1&t=7083&p=70976&hilit= ... own#p70976

[Gary406]

cheers guys.

dealer price is only £29 for that sensor . so i can live with that

[tadunce]

I have taken it from the junk yard for the 2 quids
But it doesn't solve my problem

[Gary406]

change the relay ?

it can only be sensor. relay .

[tadunce]

My problem is that the cooler fans don't start. They turn on only when the AC is on.
If i take out temperature sensor, they start. So i just simply turn the AC on when i see temperature raising up

[Gary406]

thats not good practice really. i would want the problem sorted if that was mine

[tadunce]

do u often see your diesel engine temperature raising up to 100 oC? I dont, so the problem isnt as big, as it can see

[Gary406]

no my temp NEVER goes higher than 92.

but even at 75 my fans are running.

[grasmere59]

Do the fans stop when you disconnect the sensor?