What can I do for not having heat in the car?

1998 CHEVROLET LUMINA
93,500 MILES
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KWILSON1277
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  • 2 POSTS
I have a 98 chevy lumina 3.1 engine. I have replaced the water pump, thermostat and the radiator is full, no leaks, both hoses are hot... no air in line and the blower is running. I will get heat only when the car is moving and only for about 5 minutes then it turns cold, the gauge goes all the way up and then suddenly drop give heat for 5 minutes then repeat... any suggestions?
Oct 31, 2011 at 1:13 PM
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HMAC300
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make sure both your hoses going tothe heater are hot or similar in temp. then check your actuators for power or vacuum. they are under dash. generic pic enclosed.
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Oct 31, 2011 at 2:20 PM
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KWILSON1277
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I have tried that, no problem there. I replaced the radiator cap, thinking that it was not holding pressure, still not fixed. I cannot figure this out for the life of me.
Nov 2, 2011 at 12:52 PM
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