I drive a 2010 sport model and it started losing flow after longer drives (was still cold tho). It started out happening at an hour plus or so and then got a little worse fairly quickly. within two weeks I now have no (or very little) air flow from the start. It is still cold air being created as I can feel cold when ac is on and heat when heat is on( heat also doesn't have any force behind it) . I checked the fuses and tried swapping the relays to no avail. I have not confirmed a working blower motor fuse tho as I couldn't figure out how to pull that thing out. I'm going to figure that out at a parts shop soon but assuming that fuse is still good what are my next things to check? I think it may just be that the blower motor went out but thats just a guess. resistor relay? should I check the coolant pressure? thanks for reading and any help someone can offer. I'm new to working on cars but did swap out my alternator and other small things thanks to this site!

 

Probably already done...but did you check your in-line air filter behind the glove-box?

 

Sounds like your blower resistor has failed and it’s a common problem on the Fit. Blower will work on the lower two speeds but no air flow on the higher speeds. I had to replace the resistor and went ahead and replaced the blower on my 09 Fit with 161K miles. Amazon has the resistor and blower after market parts if you want to go that route. As was mentioned earlier check the condition of your cabin filter first.

 

got it sorted out. I figured it had to be either the blower motor or its resistor. I went and bought both and it was the motor that had gone out.

 

Thanks for reporting back and good to here it’s fixed.