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Heater/AC makes loud noise only on highest setting

9982 Views 12 Replies 6 Participants Last post by  Blasirl
I am not sure if I am posting in the correct area I am brand new here.
I have an issue with my 2014 Cruze LT when the fan is on max there is a very loud blowing sound,
I went out and replaced the air filter and it is still happening, has anyone had a similar issue?
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· Premium Member
6,727 Posts
I could no hear anything "extra" in the video making noise, but after changing the cabin filter you have to reach down under where the filter goes and make sure no leaves or other debris falls below the filter. If not you will get an annoying rattling as that stuff bounces around under the filter.

There is allot of suction created by the blower motor, when changing my cabin filter I've found leaves that made it almost past the filter on their own on the front edge were you slide the filter out. If you can use a vacuum to ensure nothing has made it past.

· Banned
9,198 Posts
Mine was doing this too, with the cabin filter removed, could feel that squirrel cage fan extremely close to the shroud on top. Dropped the blower motor, not hard on this thing and glued on washers between where the blower motor mates with the housing to drop that cage a couple of mm, solved this problem. Reason for gluing, those washers would fall off.

Seemed to be a better solution than not using top speed. Didn't come this way, started around 30K miles or so. Other little problem under the windshield cowl are too wide openings on either side where debris or even a mouse can enter. Used some of that plastic rain gutter mess, about quarter inch squares with hot glue, to keep this bigger stuff out.

Made it very easy to remove that plastic cowl, held in by those push pin rivets, and old stuff, screws would be rusted and break off. Have to remove the wipers first, but already used a small amount of anti-seize when it was new, came right off. Call this post production work.
1 - 13 of 13 Posts
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