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Thread: help, engine fan going mad

  
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    help, engine fan going mad

    ive got a problem, when i start my car/or even just put keys in ignition the engine fan comes on,and the engine temp gauge doesn't work.

    ive just done a code test, and it came up with maf, and 0115 which is Intake Coolant Temperature Sensor CTS.

    so i take it i need a new maf, but what do i do about the second fault?, which i assume it bringing on the fan.

    and is it still safe to drive it?

    thanks,
    matt
    astra sri turbo

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    Change the coolant temperature sensor fairly promptly as chances are the engine will be overcooled if the fans are running constantly.

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    Quote Originally Posted by montyfox View Post
    Change the coolant temperature sensor fairly promptly as chances are the engine will be overcooled if the fans are running constantly.

    what do you mean by changing the coolant temp sensor, do you mean disconect the sensor.

    or could i just disconect the fan?

    will it damage the engine then with the fan constantly on?
    astra sri turbo

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    The coolant temp sensor is probably duff, change it, its a cheap and simple fix for what is probably causing the fan problem.

    Your temp. gauge isn't working so you can't tell us what the temp is at with the fans permanently on, I don't know the duration of your normal journey and I don't know your driving style so TBH I can't really comment as to whether or not damage is being done.

    One thing I do know is that oil needs to get up to its working temp. before it starts to fully protect the engine and the fans being on will cause the oil to stay cooler for longer so the sooner you sort the problem, the better

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    thanks, so would you say the reason that the gauge isn't working is because the sensor is dead, and is telling the fans to stay on.

    also i fixed the dodgy earth today, could there be anything in that wiring harness that i could have damaged to cause this?

    could the broken maf cause this?

    as for my driving at the moment im sticking to about 2k revs, so this shouldn't do any damage for about a week should it?

    and ill see if the sensor fixes things.
    astra sri turbo

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    is this the correct part i need to order:

    Water Temperature Sensors
    X1.4XE/X1.6SZR/X1.6XEL/Z2.0LET 90541937
    astra sri turbo

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    Quote Originally Posted by -matt View Post
    is this the correct part i need to order:

    Water Temperature Sensors
    X1.4XE/X1.6SZR/X1.6XEL/Z2.0LET 90541937
    Yep, thats the one.

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    ill call vaux then in the morning and see if they have it in stock, then if that and a new maf don't fix it, i think it will be going to a garage.
    astra sri turbo

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