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Thread: Worrying Operating Temps

  1. #1
    Regular Member barkzz's Avatar
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    Default Worrying Operating Temps

    Hi Guys,

    For the past few months, my veccy doesnt appear to be running at the correct temp.

    Was normally around the 90 mark, but it doesnt appear to any more.

    Always hangs lower down, around 60ish, but will eventually get to 90, just takes longer. However when it gets there it starts to drop back toward 80ish.

    Hot or cold weather doesnt seem to have any effect on this, but the heat coming through the heater is effected slightly, as when the temp is lower, the heater can take longer to get hotter air though, but not massively so.

    Any suggestions? Is this something I should be really conerned about, or just a dicky gauge/knackered thermostat of some sort?

    Thanks.

  2. #2
    Regular Member Gsi3.2's Avatar
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    at worst a shot thermostat.........easy swapover....

  3. #3
    Regular Member mark1319's Avatar
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    I've kinda noticed mine running slightly warmer since installing stage 3, was around 85, but now sits about 87 or up to 90 at times. Anything to worry about or does the more fuel going in increase the temps?

  4. #4
    Regular Member barkzz's Avatar
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    Sounds promising,

    Any idea how much they cost, and location of where it has to be swapped/installed from?

    I can pass your comments onto my old man, who is a retired mechanic

    Thanks

  5. #5
    Regular Member Gsi3.2's Avatar
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    Quote Originally Posted by mark1319 View Post
    I've kinda noticed mine running slightly warmer since installing stage 3, was around 85, but now sits about 87 or up to 90 at times. Anything to worry about or does the more fuel going in increase the temps?
    it's just down to the extra load being put on the engine.. that turbo is water cooled after all......

  6. #6
    Regular Member Gsi3.2's Avatar
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    Quote Originally Posted by barkzz View Post
    Sounds promising,

    Any idea how much they cost, and location of where it has to be swapped/installed from?

    I can pass your comments onto my old man, who is a retired mechanic

    Thanks
    the thermostat is located in a housing on the front left of the engine by the exhaust manifold... you just need to remove the two hoses ( bypass and radiator flow) and then undo the torx bolts...

    the replacement you buy will either be a bare 'stat or one already in the housing.. if it's a bare one then you can swap it by twisting the locking tab inside the housing..

    replace the o ring seal ( it looks soooo flimsy) , clean the heads mating surface, a smear of sealant and refit the housing..do the bolts up and refit the hoses..fill the car up again with 50/50 mix of red longlife antifreeze.. avoid the blue..

  7. #7
    Regular Member mark1319's Avatar
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    Quote Originally Posted by Gsi3.2 View Post
    it's just down to the extra load being put on the engine.. that turbo is water cooled after all......
    Cheers Mark, my minds been put at ease once again LOL

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    Regular Member barkzz's Avatar
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    Thanks,

    I will have a bash at that this weekend if the weather holds up!
    Failing that the heavy duty coat is coming out!!!

  9. #9
    Full Member merikiito's Avatar
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    Vehicle : Insignia CDTi SRi NAV 160

    Trim : SRi

    Engine : A20DTH

    Year : 2009

    Mileage : 88000

    Default

    Defo the thermostat, 1.8 suffers from this issue. Change the temperature sender unit as well as these are only a few £'s at the same time. The owner of my previous car (Vectra C 1.8 SXi) has had to do the same and now everything is fine.
    Lois Griffin: Peter! You're bribing your daughter with a car?
    Peter Griffin: Ah, c'mon, Lois, isn't 'bribe' just another word for 'love'?

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