Radiator Cooling Fan

[xpher]

Hi

Got Lanos 1.4SE 1998
Noticed that radiator cooling fan is running when engine first started (cold). Is it supposed to or is there something wrong? Other cars I've had it only comes on above a certain temperature.

Thanks

[nubira88]

Sounds like it has been hard wired to one of the cars electricals.... start at the plug and run through the wiring this will tell you or maybe a faulty sensor?

[xpher]

Hi

Thanks for reply.

Doesn't look like hard wired. Would it be the coolant temp sensor below manifold? Is there any way of checking this? Also could it have something to do with my other problem of engine check light coming on when car gets to temp and revs rising to 2500 without foot on throttle.

Cheers

[daewoomofo]

i wonder if the relay for the fan is stuck on? from the sounds of it,it sounds like it was either hard wired (like 88 said) or the relay is stuck on. im not sure if the CTS would cause it do do that, i dont think it could but im not and expert. get your car scanned to find out what the CEL is being caused by. if your in that states autozone does it for free, im not sure about other countries though. good luck keep us posted

[xpher]

Hi

I'm in Uk and apparently nearest place for sorting Daewoos is about 100 miles away and I wouldn't dare take the car that far at the moment.

[Daniel]

Hi

I'm in Uk and apparently nearest place for sorting Daewoos is about 100 miles away and I wouldn't dare take the car that far at the moment.

Hi, the sensor you want to check is the "n" on the pic. It's located below the intake manifold on DOHC engine and near ignition coil on SOHC engine. If defective this sensor can trigger a FAN ON condition.
Since you "engine light" is ON and if you have a ALDL connector you can read the error code. Or ask a mechanic to read it for you.


Daniel

[xpher]

Hi
Thats the one I thought. It has a silver end on it that spins round and then a wire with a plastic connector that attaches to another plastic connector.

[Daniel]

In order to check the sensor remove the plug and measure the electrical resistance between the 2 contacts on the sensor. You should read approx:
5600 ohms @ 10°C 50°F
4500 ohms @ 15°C 59°F
3500 ohms @ 20°C 68°F

If results are far from this (shorted or open) the sensor is probably defective.

[xpher]

Resistances seem to check out.

[Daniel]

Resistances seem to check out.

And what about the error code? Can you read it?

[xpher]

Got nothing to read error code with. No cash to find out.

[Daniel]

Got nothing to read error code with. No cash to find out.

Try to find your diagnostic connector. If it looks like this one you just need a paper clip to read the error code(s) . Post a pic of your diag connector to go to next step.

[broken]

Daniel is it possible to use a paperclip to get my codes to show? I have a 1999 Daewoo Lanos Hatch 1.5

PS. not sure what way up this pic goes.

[Daniel]

Daniel is it possible to use a paperclip to get my codes to show? I have a 1999 Daewoo Lanos Hatch 1.5

PS. not sure what way up this pic goes.

With A & B shorted and ignition ON (not starting) the CEL will start flashing. Also fuel pump and fan(s) should be activated. Record code(s) if any, switch OFF, remove shorting clip.
But watch this video, better explained than I could: http://www.youtube.com/watch?v=sRoSMhEL3Ms .
All that done under your responsability.

[broken]

Thankyou Daniel, the video did explain it great.