1996 Chevy Lumina Heater

1996 CHEVROLET LUMINA
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BOXKITE
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Heater problem
1996 Chevy Lumina V6 Front Wheel Drive Automatic 175000 miles
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Heater blows hot & then cold alternately. Temp gauge goes to about 1/2 way then returns to about 1/4 fairly rapidly. heat goes back & forth with the guage. Both heater hoses are warm, radiator cap is very cold after 45 mile highway drive.
Dec 4, 2007 at 5:55 PM
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DOYLECAR
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yeah, that is exactly what my car is doing too!!! Any responses or luck trying to find out what's wrong?
Dec 7, 2007 at 6:38 PM
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STRAILER
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Yes, this will happen if the engine coolant is low, I would wait until the engine cools down overnight and then open system to check the elven, if low please use this guide to help find the leak.

https://www.2carpros.com/articles/car-is-leaking-coolant

this video can help as well.

https://youtu.be/GSE9skKnOgY?si=b9nqx7AOxzKNaBic

Please go over these guides and get back to us.


Jul 1, 2024 at 12:18 PM
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