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1996 Chevy Lumina Heater

Tiny
BOXKITE
  • MEMBER
  • 1996 CHEVROLET LUMINA
Heater problem
1996 Chevy Lumina V6 Front Wheel Drive Automatic 175000 miles

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.
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Tuesday, December 4th, 2007 AT 5:55 PM

2 Replies

Tiny
DOYLECAR
  • MEMBER
  • 1 POST
Yeah, that is exactly what my car is doing too! Any responses or luck trying to find out what's wrong?
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Friday, December 7th, 2007 AT 6:38 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
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.

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Monday, July 1st, 2024 AT 12:18 PM

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