Loud fast clicking from blower motor

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Sep 7, 2020 | 08:24 PM

J_question

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Loud fast clicking from blower motor

I have a really loud Fast clicking noise from my blower motor when it’s running, and it seems like a lot of air is being pushed into the engine bay when it’s on high, any ideas?

Last edited by J_question; Sep 7, 2020 at 08:52 PM.

Sep 10, 2020 | 08:25 PM

vorteciroc

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From: 212 is up in this Bit@#

Car: Resto-Mod 1987 IROC-Z Clone

Engine: Alky fed L92 Vortec Twin-Turbo 6.8L

Transmission: My own built/ design 4L80M

Axle/Gears: Custom 12 bolt (4.10:1)

Re: Loud fast clicking from blower motor

You may be hearing the relay for the "High" speed blower setting; clicking on and off... It may be going bad.

Or you might be hearing the blower-motor resistor assembly making noise...

It is difficult to guess without more information... Sorry.

Sep 14, 2020 | 08:40 PM

NINÅ

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From: Mooresville NC

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Radioactive Fan

Sounds like the squirrel cage is hitting its' surroundings.

"lot of air is being pushed into the engine bay when it’s on high"

Seems like a bad seal.

Air can be introduced into the bay anywhere around the fan flange to the evaporator housing.

With the engine off, but the blower on, see if you can feel the origin.

A smoke generator can help.

Introduce smoke at the cowl intake, then see where the smoke comes out.

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