# 2005 Nissan Frontier blower motor not blowing hard

**URL:** <https://community.cartalk.com/t/2005-nissan-frontier-blower-motor-not-blowing-hard/164104>\
**Category:** Maintenance/Repairs\
**Tags:** nissan, frontier\
**Created:** [May 10, 2020, 3:53am UTC](https://community.cartalk.com/t/2005-nissan-frontier-blower-motor-not-blowing-hard/164104 "2020-05-10T03:53:52Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Tonzo](https://avatars.discourse-cdn.com/v4/letter/t/ea5d25/32.png) [@Tonzo](https://community.cartalk.com/u/Tonzo)\
**Post date:** [May 10, 2020, 3:53am UTC](https://community.cartalk.com/t/2005-nissan-frontier-blower-motor-not-blowing-hard/164104/1 "2020-05-10T03:53:52Z")

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blower motor for heat and ac does not blow hard

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**Author:** ![vipergg](https://avatars.discourse-cdn.com/v4/letter/v/50afbb/32.png) [@vipergg](https://community.cartalk.com/u/vipergg)\
**Post date:** [May 11, 2020, 1:13am UTC](https://community.cartalk.com/t/2005-nissan-frontier-blower-motor-not-blowing-hard/164104/2 "2020-05-11T01:13:33Z")

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Blower resistor probably shot .

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**Author:** ![Triedaq](https://avatars.discourse-cdn.com/v4/letter/t/65b543/32.png) [@Triedaq](https://community.cartalk.com/u/Triedaq)\
**Post date:** [May 11, 2020, 1:23am UTC](https://community.cartalk.com/t/2005-nissan-frontier-blower-motor-not-blowing-hard/164104/3 "2020-05-11T01:23:06Z")

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If the blower motor switch is on the highest speed, the blower resistor is bypassed. Therefore, if it isn’t moving enough air in the highest speed, the blower resistor isn’t the problem.  
The most likely causes are:

1. A blockage in the air intake to the blower;
2. A blockage from the discharge from the motor. This could be a stuck blend door.  
3). A worn out blower motor

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [May 11, 2020, 1:24am UTC](https://community.cartalk.com/t/2005-nissan-frontier-blower-motor-not-blowing-hard/164104/4 "2020-05-11T01:24:47Z")

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There may be a problem with the high speed blower motor relay.

 ![image](https://global.discourse-cdn.com/cartalk/original/3X/0/c/0c355349d0474202a7c24851f51435ec6fe33d61.jpeg)

How this relay works is, for the low speeds, the relay directs the voltage thru the resistors,.

For the high speed, the relay directs the voltage directly to the blower motor.

Bypassing the resistors.

Tester

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**Author:** ![tcmichnorth](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tcmichnorth/32/25126_2.png) [@tcmichnorth](https://community.cartalk.com/u/tcmichnorth)\
**Post date:** [May 11, 2020, 9:22am UTC](https://community.cartalk.com/t/2005-nissan-frontier-blower-motor-not-blowing-hard/164104/5 "2020-05-11T09:22:11Z")

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> [@Triedaq](#):
>
> A blockage in the air intake to the blower;

Should check cabin filter if equipped.

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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:** [May 11, 2020, 1:50pm UTC](https://community.cartalk.com/t/2005-nissan-frontier-blower-motor-not-blowing-hard/164104/6 "2020-05-11T13:50:39Z")

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> [@tcmichnorth](#):
>
> Should check cabin filter if equipped

+1  
Assuming that this truck has a cabin air filter…  
_When was the last time that it was changed?_