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Lincoln
Navigator
Climate Control
Air Conditioner
Not Working
When idling it blows warm and cool air
2000 LINCOLN NAVIGATOR
165,000 MILES • 5.4L
JLOCK11
MEMBER
1 POST
My SUV blows warm air and cool air when idling. what is going on? thanks, JL
Dec 26, 2017 at 8:05 AM
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STRAILER
✓
Experienced Mechanic
55,562 POSTS
Hello,
It sounds like the engine coolant level is slightly low causing the heater core to run out of coolant when at idle.
Here is a video to help you check the coolant level.
https://youtu.be/GSE9skKnOgY
Here is a guide hat can help as well.
https://www.2carpros.com/articles/car-heater-not-working
Please let us know what happens.
Cheers, Ken
Dec 28, 2017 at 5:17 AM
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Air Conditioner — Not Working
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