Question about 2003 Chevrolet Malibu

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Over heating replaced intake gask. t-stat.flushed rad. replaced cooling temp sensor ,no coolent in oil ,no white smoke from exshust.but it still over heats

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  • pdknoblach77 Sep 17, 2008

    replaced water pump drove two weeks no problem and now again over heating

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There are 2 bleader valves on your vehicles cooling system, Each are near the fron valve cover, One on the left and one on the right side.
They both are 7mm nuts that you do NOT want to fully remove. you only have to loosen enough til you see antifreeze sneak out of it.
With the car running and at normal temp open the valve on the right first. when you notice a small stream without bubbles tighten it back up (DO NOT OVER TIGHTEN, they break easily)
after that one is tight, do the same to the one on the left.
Hope this solves you frustrations.
Please rate.
Thanks,
Nick

Posted on Sep 17, 2008

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Water pump or air pocket. Try bleeding the system first though.

Posted on Sep 17, 2008

  • Steven Brock Sep 17, 2008

    And the coolant level is still good? If so, I'ld have to see to determin. Actually, try bleeding the system agian. IF that solves your problem for a short time, there may be a problem with your head gaskets. yes I know you just did them......it's a suggestion. I've seem it happen, improper instalation, warped heads, hair line crack in block, etc...

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