I have a 1998 chevy k1500 5.7 i ordered a retrofit kit that i was told would fit but im having some trouble finding and area for the filter only thing i can see if laying it on the heater core just passed the blower motor which i dont want to do. Any ideas or support of any kind would be much appreciated i would love to not clean my truck every week due to dust coming in.

 

Do these trucks not have a factory cabin air filter? I don't think they do, but then again I have never looked and certainly haven't replaced one in my truck.

 

I have found an area just past the blower motor im gonna tape a dryer sheet kn the sorrounding hole for now that should keep the dust out and leaves and debris I plan on making an actual filter and using wire mesh to secure it. Found out walmart has an anysize cuttable home ac filter with carbon lay i can cut in a circle make 4 holes in the box and wire it in i can then sorround the filter in silicon to seal it.

 

Are you talking about where the blower draws in air form the cabin? Or do you mean putting a filter in the system somewhere past the fan, like in the duct work? If you put it after the fan I think it would work great, but if it was put on their before it would only filter the air be recirculated in the cab maybe? Hard trying to figure out what people mean just through words. Correct me if I am wrong but I believe that the blower motor and the bulk of the HV/AC system is under the passenger side and middle of the dash? Overall sounds like you are on the right track!

 

I’m having a hard time understanding your description of where you’re thinking about placing it and how you’re making it; so here’s the advice I can offer.

1) The best position for a cabin filter is between the blower and the fresh air intake - this keeps the most dust out of the cabin.

2) The places GM commonly puts them (not just trucks) is just under the windshield cowl, accessible by a small cover; in the HVAC housing above the blower; and between the blower and evaporator core (all air flows first to the evaporator, then the heater core, with the exception being if your truck doesn’t have AC).

3) I don’t recall the year that GM started using cabin air filters, but some trucks that didn’t come factory equipped with them could be retrofitted with one. If your truck has this spot, it’ll be either above or to the left of the blower - it’s a rectangular part of the case roughly 2” x 8-10” long that runs vertically. You cut that part of the case out and have a slot for the filter. You can rig the piece you cut as the door or get a retrofit door for it.

 

The part where air is sucked in when you pull the motor out its a circle cutout that leads to the recirc door and the part that goes up for fresh air so no matter what setting i use i can get filtered air i just need to get the time off that i need to buy the filter material.

 

Sounds good.