# 2006 lincoln zephyr

**URL:** <https://community.cartalk.com/t/2006-lincoln-zephyr/87201>\
**Category:** Maintenance/Repairs\
**Created:** [September 16, 2014, 1:12am UTC](https://community.cartalk.com/t/2006-lincoln-zephyr/87201 "2014-09-16T01:12:16Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![grizz](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/grizz/32/2597_2.png) [@grizz](https://community.cartalk.com/u/grizz)\
**Post date:** [September 16, 2014, 1:12am UTC](https://community.cartalk.com/t/2006-lincoln-zephyr/87201/1 "2014-09-16T01:12:16Z")

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Turned on heat/air this morning while i was driving and it came on but not with full force and i could not control the fan output,also when i would come to a stop(idle) the air out put would drop to almost nothing then when i would accelerate the fan output would raise again but not to full output. turned it off and tried again but this time no output at all. what do I check/replace/repair? thanks so much!

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [September 16, 2014, 1:42am UTC](https://community.cartalk.com/t/2006-lincoln-zephyr/87201/2 "2014-09-16T01:42:49Z")

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Start by having your charging system and your battery tested.  
The heater fan is a DC motor sensitive to changes in voltage. It sounds your voltage is dropping at idle, and maybe not even giving you full output at operating revs. .

You might also have a failing heater fan motor. But my money is on your alternator or battery being bad.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [September 16, 2014, 1:46am UTC](https://community.cartalk.com/t/2006-lincoln-zephyr/87201/3 "2014-09-16T01:46:47Z")

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+1 to mountainbike’s diagnosis.  
Depending on how old the battery is, it might just be a weak battery, but I think it is more likely to be a failing alternator–which will kill the battery in short order if it is not replaced promptly.

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**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [September 16, 2014, 6:07am UTC](https://community.cartalk.com/t/2006-lincoln-zephyr/87201/4 "2014-09-16T06:07:04Z")

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I hope this isn’t still the original battery. If it is, replace it immediately. If the summer heat doesn’t kill it, the winter chill will