Question about 1999 Chevrolet Malibu

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Have a 99 malibu...replaced motor..replaced intake gasket on motor before installing..everything went problem now I have good great heat one day and no air, then the next day good air no heat.....? Also put new stat and water pump in the motor

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You may want to flush you heater core:

the heater core is in the dash inside the engine. But open the hood and look on the firewall of the car. There should be 2 rubber hoses going into the firewall and into the car. If factory they will have spring clamps just like on the radiator hose. Remove both lines. Then get a hose and put it in one line and run the water until it comes out clear. Then do the same thing with the other side. Do this a couple of times. Then reconnect the 2 hoses and check the level of the radiator. Then start the car with the radiator cap off and wait a while for the thermostat to open and have the heater on so it will cycle through the whole system. Then top off as needed.

This should fix your problem Tim

Posted on May 26, 2011

  • johnc7458 May 26, 2011

    Thanks alot will definitely try this...



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