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Thread: Vectra 1.9 150 Temp Guage Dropping

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    Default Vectra 1.9 150 Temp Guage Dropping

    Hi all,

    I have a Vectra C 2007 1.9 150 sri. Problem I have is that I can be going down the motorway with the temp guage sat at 85, then it will just drop to 80, then go back up again. Odd time its gone as low as 75 then got back up again. It had a new thermostat in Jan 10 (12k miles ago roughly)(including new housing) .. About 3 week ago it had a new cambelt kit, water pump fitted, but im sure it was spot on after this. I do around 250 miles aweek for work only only noticed it the last week.

    Any help would be great.

    Cheers
    Si

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    Any ideas anyone??

    Cheers

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    Vehicle : Golf 7

    Trim : GTD

    Engine : 2.0 TDI 184PS

    Year : 2014

    Mileage : 40000

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    Could it be the thermostat? If it drops on a motorway then rises when climbing up a hill or in town, then I would say the thermostat has had it. As the work was caried out 3 weeks ago get it back to the garage and ask them to check it - infront of you.

    Gazza4

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    Had a new thermostat on mine and it does the the same thing. Only 5 degree variation. No where near as bad when the old one was totally nackered!! Just living with it.

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    Mines similar to this. Up and down all the time.

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    Oh right I see, it cant be a gauge fault as when i put the dash on test mode im getting the same reading on the multi display thing as the gauge is telling me. Just so weird it dropping to 80 then will go back upto 85. Driving round town etc I think it stays normal ish. Just motorway its doing it.........

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