Question about 2004 Chevrolet Aveo

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I am replacing the thermostat and housing in a 2004 chevy aveo. The old one was a solid plastic piece with the thermostat inside and it split apart. The new one is metal but is not one solid piece. I am wondering if I use sealant or gasket where the two halves meet? It just doesn't seem like it would be water tight if I dont. Any help would be appreciated.

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  • shs187 Jul 04, 2010

    i am replacing a part that has gone bad and there arent any of these at a junkyard. this is the part i got from the dealership

  • shs187 Jul 04, 2010

    Thanks for the help. I was thrown off when the part came in a couple of pieces. I appreciate the quick response.

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Yes you will have to apply sealant. Exactly where the two halves meet. Now put on the gasket. First place a small bead of sealant (ask the auto part store for the blue stuff) on the housing cover then place the new gasket on matching the position of the holes and shape of the cover, now again a small bead of sealant on the seal of the housing seat. If you don't know how to make a "bead" ask if the auto parts guy will show you.
Now place the new thermostat in the housing, careful not to get any sealant on it, if you are not sure you can do that then put the thermostat in first then the bead of sealant. And you don't need a lot of sealant that why I say a "small" bead. Too much and bits and even chunks can brake off and get caught in the thermostat and other places in the cooling system. Gently place the cover back on and screw in the bolts, now reattach the hose. You want the hose clamp tight but not so tight that it cuts into the hose.Allow the sealant time to dry.
Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Jul 04, 2010

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Hi! Is this a replacement part for the aveo itself? Its not advisable to tamper the thermo for if it fails it cant be replaced by a new one. It may not perform well too for its different from the original. If there are surplus or junkyard near you its better to swap a thermo from there for its the perfect fit. Hope this helps and have a good one!

Posted on Jul 04, 2010

  • dj_relly999
    dj_relly999 Jul 04, 2010

    Hi! Hows it going?

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