I have a 2000 nissan quest. I replaced the resistor and the blower motor. Now i have very little air coming out of my vents

SOURCE: No air coming through vents and blower is OK

your blower motor might be damaged.replace the blower motor of the air con.

SOURCE: blower works but no air out of vents

check your a/c and heater cores in the dash thay might be cloged up and air wont flow through them, mine was doing the same thing and that was my broblem.

SOURCE: AC blower motor resistor Nissan Maxima 2000

yeh its located under the passenger side glove box,its in the heater box beside the heater motor ,,2 scews hold it in and it looks like a credit card when its out,,,,

SOURCE: Blower motor vent selection switch not working

the hvac selector switch in the dash may be the problem.You need to remove the switch and look at the connector on the back of switch,see if there are any burnt wires at the connector or switch.It's all electronic and the switches have been known to burn out on this and other model.

SOURCE: no air coming out of vents on 2000 gmc safari

it sounds like the hvac mode acuator which controls where the air goes. if it still blows through def or floor thats what it is