AC Blower Seemingly Weak

I did a quick search and didn't see anything regarding this. Please forgive me if it's been covered and I'd appreciate a link.

I believe the blower for my AC could be a little stronger. I don't have any scientific data but for the last couple of years it has seemed like it isn't what it used to be. Maybe it's my older age and these Arizona summers are really getting to me. Has anyone tried replacing the blower motor and had good results? Mine does not make noise and I do change out the cabin filter 2x plus each year.

Thanks!

 

What kind of air filter are you using? I know the carbon ones restrict air

 

Sometimes OEM, sometimes parts store disposable

 

Are you concerned about the velocity or the cooling ability?

 

More so velocity. If I wanted to be a total complainer and expect perfection, I'd say cooling also. But from what I've seen, the Tacoma doesn't have a stellar air conditioning system. I'd be happier with more velocity.

 

I think considering the Tacoma has a smaller cab than most vehicles, the a/c probably was meant to be weak. I know for me the first setting is pretty weak, but the 2nd notch and above is more than adequate.

 

Yeah, wished I could feel the same. I do understand that I live in temps higher than most. Like I said, it may be that I'm getting older (and fatter) but I just don't remember having any gripes about it 3 plus years ago. I'm just poking around to see if anyone has the same feeling and that has possibly took a leap and tried a new blower and had success.

 

You should try to eliminate all possibility of a blockage of air flow before replacing the blower.

Not sure if it can be done on these trucks, but maybe see if you can use some evap coil cleaner on the evap coils.

I'm not sure where the HVAC system pulls fresh air, but also check there for any blockages. I know its somewhere near the wiper cowl but I have not seen it myself yet.

 

Can you hear the change in speed if you turn it from of to full blast? The reason I ask this if there is no difference between blower speeds you have an issue. I have seen the switch control melt before.

 

Also make sure the blend doors in the ducts are fully opening and closing...

 

I'm having the same problem. The A.C. just doesn't seem to blow as hard as it used to. That's why I'm here. I've seen another thread that said to first try replacing the cabin air filter. I'm gonna follow this thread though, in case some useful info follows.

 

I've always kind of felt the same way about mine. Now with 105F temps we're reaching in south Texas, the A/c's inadequacies are more than noticeable. I'm not a tall man and the air coming out of the vents seems to barley make it to my face before it dissipates.

I'm gonna poke around but would their be a link on just how to do that? What would the symptoms of a "not fully functional duct door" be?

 

One thing I did recently that helps: I used to run the fan in "upper and lower" mode, but now I just use "upper" mode and that seems to flow a LOT more air. If you can manage to keep moving, then you'll get it cold enough to freeze yourself.

But I still suspect that an aux fan on the condenser would help when you're crawling in a traffic jam.

 

You could rule out the filter by running it without a filter and see if there’s any improvement. I was starting to think there was something wrong with mine and realized it was my cabin air filter that was causing it. I bought a reusable kn filter and there’s a noticeable improvement in cooling and air output. $40 and will never need to buy a new one, will pay for itself in a year or two. I’m surprised more people don’t use this, well worth it IMO.

 

I had the same problem. It went on for years. As it turns out, it was just a matter of the alternator not putting out as much power as it used to. The good news is that there's probably no rush to change your alternator. But keep it in mind.

 

Thank you very much. The cabin air filter needed changing. It blows at least 4X as hard now. I actually got cold at the end of June on hot muggy day in Alabama. I previously replaced my blower motor with an eBay aftermarket. I thought I may need to pay more and buy the OEM, thinking the China models may have weaker motors. I'm glad I came across this thread, it was very easy to replace.

 

What did you end up finding? So my scenario is I replaced the motor and resistor thing. But Im getting weak air velocity. Now that it’s getting humid here in Michigan I need to figure it out.

cabin air filter delete does nothing.
There is no blockage to the hvac inlet
Mixer actuator appears to be working fine as when I change selector i can see the actuator move each time.

im thinking its a downstream clog, maybe the air exchangers are clogged with 230k miles worth of farm and dirt road dust?.

looking for another option before digging that deep to look/clean them.

 

My son and I are going through this for his 2014 Taco..... Just doing testing and noticed actuator for air vents flooring has a little bypass but not too much. Already replaced new air filter OEM (non carbon type). As I would expect if I remove the the air filter temporarily the air flows goes up but much much more than expected... Opened up the doors to the cabin air filter and can see the new oem one being sucked down into the blower assembly hitting the center post of blower motor. Air is cold but cuts in half or more with cabin air filter. Would the K&N version of cabin filter have more support like the engine air intake does? Don't think evap coil is full of gunk and can see that actuator for fresh versus recycled air is working properly.... Anything else others have had to do?