Question about 1998 Chevrolet Malibu

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Intermitant heat i have been having problems with my malibu, the heat will come and go, i replaced the thermostat yesterday, bled the air off the cooling system and it still does it, how much coolant does it hold, i dumped 3 1/2 gallons of dexcool at 14 $ a gallon, can not afford it to blown out the overflow, any one have any ideas maybe i just have to keep bleeding the air off, i thought that i had it good enough but maybe not. any ideas will be appreciated thanks

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  • lincmax Nov 01, 2008

    Trying to defrost the windows is taking way too long. Never seems to get hot. Heat comes on hot when I accelorate. After running car for 7 min, it gets warm.

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  • 2,039 Answers

After changing a thermostat the most you can had is a few liter 3.5 gallon maybe 2 gallon when its completly empty you most have a leak in there and the overflow tank on the passager side dont fill it up to mush not more then a inch in that tank if you fill it it will come out thanks pierre

Posted on Nov 01, 2008

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Are you sure you bled all the air out of the cooling system? This is the symptom of trapped air. There should be little bleeder valves on the engine near the thermostat, they kind of look like front end grease fittings. Open them up while filling and have the front of the vehicle raised to help the air escape.

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