Ac seems to smell so wanted to put some Lysol in the fresh air intake but don’t know where it is, does anyone have pics showing that? Thanks

 

It's called the cowl.
The slotted grill area beneath your windshield.

 

Thank you, will see if I can spray some Lysol in there

 

Expresscv: Does your 2017 Express Cargo 3500 Chevy have an Interior Climate Air Filter? If so, I would change that out.

 

I wish it had a cabin air filter but no... I did not think any of them did

it is dealer maintained and they have never said to change it, i also looked around and could not find that it had one anywhere online...

 

Don't use Lysol. That's amateur hour.
There are far better products you can buy specifically made for cleaning AC systems. They come with long tubes that let you get deep into the ducting, and they foam up so you can soak the AC evaporator for a while, and really kill the mildew.

 

well i already used the lysol, will do some more research on products for this