Engine Fan always on

[mt10argyll]

Hi

My engine fan comes on when I start the engine and runs continuously. it does

not run with the ignition on only after the engine is running,

can anyone suggest how i can fix this or were I should look to sort this out

Max

[Loren]

:welcome:

Are you sure it is your engine fan?

Not sure about RoW Scotland cars but US/Canada cars have a secondary air pump that runs for about 2 minutes at every cold start (for emissions).

[mt10argyll]

Hi Loren

Thanks for the welcome, yes it is the fan in the engine lid,

below the spoiler, I have had the car for 4 months and don't know

if it always did this or not, any help appreciated

Cheers Max

[Loren]

That fan should only turn on when the engine is very hot.

The DME turns it on based on the air temperature in the engine compartment.

Perhaps a previous owner wired it to be on all the time?

A PST2 or PIWIS tester can tell for sure whether it is an electrical fault or what.

[mt10argyll]

Thanks for the advice Loren. I will get it tested

Max

[phillipj]

I agree with Loren. Some people have done a "fan hack" to have their high speed (radiator) fans and rear engine fan run continuously or by a switch in the interior.

It's possible that the previous owner may have done this hack. It's controversial to say the least (if you do a search here on "high speed fan hack" you will see what I mean).

Good luck and let us know what the test reveals.

[jpflip]

Take a look at the temp sensor located close to the steering reservoir to the right of it and a little bit aft of the air pump on a small bracket. Look at the wiring condition and plug.

[mt10argyll]

Just an update on my spoiler engine fan. I checked the relays under the rear shelf

and found someone had previously mixed up the relays number eight was in the wrong

position, now fixed and all is well, thanks for all the suggestions

Max

[Loren]

Just an update on my spoiler engine fan. I checked the relays under the rear shelf

and found someone had previously mixed up the relays number eight was in the wrong

position, now fixed and all is well, thanks for all the suggestions

Max

:thumbup: