Put a new blower motor for the air now it don't blow out the vent

Only works on high speed before but it only blows on defrost now

but,does the new one work on all speeds now?

It only works on high speed

it's not the blower motor.it's the blower motor resistor,it's bad.replace the resistor.it's burnt!

Where is that located on my truck is it a some kind of fuse

it's next to your blower motor.4 wire connector.1 or 2 screws hold it in.google part # below,see what it looks like.Autozone part number. Blower Motor Resistor, Part Number: CR153 Price: $49.99 Part Number: CR153 Warranty: Limited Lifetime

Ok ty so much hopefully it will make it work again I'll let u know :)

okeydokey,post results.

Put the part in which it was bad still only blows on defrost none comes out of the front vents still :(

you also have a vacuum leak.when you have a vacuum leak,the blower motor will default to the defrost mode.check under the hood,next to firewall.the small hoses,one or more goes through the firewall.check all the vacuum lines.listen for hissing sound,(sucking air)look close at the small lines.some will tee off and go to different places.if it's one of the small lines,you can get repair fittings and what ever size hose it is at napa,the Zone,adv,orly,it's cheap.most of the time,the vacuum leak will be under the hood.but sometimes it;s under the dash also.good luck.post findings.