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Thread: Outside Temp + Climate Control problem

  1. #1
    Regular Member mkaras1980's Avatar
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    Angry Outside Temp + Climate Control problem

    Hi guys,

    two, possibly connected together, problems...

    Outside temp is showing from -25 to -40, sometimes F (fault?)
    I've changed the sensor twice - nothing... Where should i look next?

    Climat Control is trying to kill me by roasting me alive! Any temperature (from 16 to Hi) will blow hot air all the time and only setting to Lo will blow cold...

    Any ideas? Any chance both faults may be connected together? Help!

    Cheers,
    Michal

  2. #2
    Regular Member rich r's Avatar
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    I'm fairly sure that the outside air temperature sensor wiring goes through a connector block that's prone to getting wet from water hitting the radiator and dripping down.
    It might be worth following the wiring for the sensor along checking the condition of the connectors. If you find one that's covered in corrosion and damp, take it apart and give it a good soaking with WD40. Then clean up any contacts that aren't bright and shiny with a small screwdriver or bit of emery paper.

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    Vehicle : vectra c

    Trim : ls

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  4. #4
    Regular Member mkaras1980's Avatar
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    Quote Originally Posted by rich r View Post
    I'm fairly sure that the outside air temperature sensor wiring goes through a connector block that's prone to getting wet from water hitting the radiator and dripping down.
    It might be worth following the wiring for the sensor along checking the condition of the connectors. If you find one that's covered in corrosion and damp, take it apart and give it a good soaking with WD40. Then clean up any contacts that aren't bright and shiny with a small screwdriver or bit of emery paper.

    Good idea mate! do you know where the wiring loom is going after dissapearing under the engine?

    Cheers!
    Michal

  5. #5
    Regular Member mkaras1980's Avatar
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    Thanks mate but i've already changed 2 sensors - no avail i'm affraid!

    Cheers,
    Michal

  6. #6
    Regular Member rich r's Avatar
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    I think the problem is more likely to be at the front of the car, around the bumper and headlight areas rather than further back. Otherwise you'd have noticed problems with more things than just the outside temperature sensor.

  7. #7
    Regular Member mkaras1980's Avatar
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    Quote Originally Posted by rich r View Post
    I think the problem is more likely to be at the front of the car, around the bumper and headlight areas rather than further back. Otherwise you'd have noticed problems with more things than just the outside temperature sensor.

    I'll have a good look then!

    Cheers!

  8. #8
    Regular Member lee gsi's Avatar
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    Quote Originally Posted by rich r View Post
    I think the problem is more likely to be at the front of the car, around the bumper and headlight areas rather than further back. Otherwise you'd have noticed problems with more things than just the outside temperature sensor.
    Its quite near to the nearside foglight.

    Its just as easy to take the bumper off and you will see it.

  9. #9
    Regular Member Handyandy-UK's Avatar
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    Just had the outside temperature problem on my GSi... thanks to some guidance on here it turned out to be the corroded multiplug rather than anything expensive.

    The offending article is found by following loom the sensor wiring goes into, and the multiplug is on the passenger side, just about level with the end of the lower grille opening (preface). It's an awkward swine to get apart, even pressing the little release catch.
    Be ready for a mass of fluffy green/white corrosion once it's apart.

    Could well be that if the climate control thinks it's -20c outside, it's doing what it can to warm the cabin the the set temperature.

  10. #10
    Regular Member kenp's Avatar
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    Quote Originally Posted by Handyandy-UK View Post

    Could well be that if the climate control thinks it's -20c outside, it's doing what it can to warm the cabin the the set temperature.
    the 4 internal temperatur sensors and sunsensor if not broken all, should fix that.

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