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My 2005 Chevy Impala overheats when I start it and the front heater blows cold air.?

When I drive it the temperature returns to normal, although the heater continues to not work well. It'll blow a bit of hot air but not as hot as normal. When I idle at stoplights, the temperature again begins to rise. Is it the thermostat going out or is there not enough coolant/water? Any suggestions?

2 Answers

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  • Tim
    Lv 4
    1 decade ago
    Favorite Answer

    Coolant is low and theres an air pocket in the system.

    Fill up and bleed cooling system- The next part of the problem is, why is the coolant low, how long before it gets low again- you may have a problem on the rise!

    Good Luck!

  • 1 decade ago

    Low coolant level.If thermostat,should have plenty of heat.

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