[Solved] Weak air output from vents
2013 Mazda 3 2.0 Skyactiv A/T
I have very weak air output from my vents. The temperature control seems to work fine (heat is hot, A/C is cold), it's just very weak output - maximum setting feels like what you would expect 4/10 to feel like. Some details:
- Cabin air filter was recently changed (Bosch HEPA) and I double checked it is installed correctly. Unfortunately I threw away the previous OEM one, so I can't put that back in to compare if there is a difference.
- It sounds like the blower motor is working, it gets louder as I turn it up - it's pretty loud on maximum, sounds like there should be a lot more output than there is.
- The different vent modes work, so I don't think it's an actuator issue. Output is weak on all vent modes.
Any ideas what could be the problem? Thanks.
make sure the blower intake isn't blocked with leaves and stuff
I don't think the cabin air filter is the issue. As @ mentioned, make sure that the intake is clear and if you still have the issue, you may change the blower fan.
Simple things first. Do what MM Joe said. If that isn't the problem, try removing the cabin air filter. Any better? If not, is the air coming out somewhere else, maybe the floor vents? If so, you have a stuck door or bad actuator. Maybe the duct became disconnected? Still no joy, check the blower motor. Maybe the squirrel cage is damaged or loose.
Is the air not cold enough or is the air output too low?
If it's air temperature on the highway, check the belt and refrigerant. If it's air temperature at idle, there's a solenoid that likely failed (available for cheap on Amazon).
If it's actual volume of air on the freeway, check the blower motor; if it's air output at idle, check the blower motor.
Usually, it's the last thing you changed that's the problem, in this case, the filter. Pull it out and try switching it 180 degrees. Many of them are directional in orientation and will not work if installed backwards.
Thanks all for the suggestions. I will start with looking into the cabin air filter, intake, and blower motor.