Heater core replacement...

[JimmyJuneau]

I replaceed the heater core in my truck today. I thought I made sure to reconnect everything the way it was. But my defrost no longer works. All of the air is coming out from the bottom vents. Does anyone have any suggestions?

 

[bigbadchev84]

you have a vacuume line unhooked under the dash

 

[JimmyJuneau]

Do you know how many vaccum lines there are? I can only remember two and they both went to the same thingamajig

 

[bigbadchev84]

did you hook up the vacuume line up to the little plastic ball above the heater box under the hood?

 

[JimmyJuneau]

I don't remember there being a vacuume line under the hood.

 

[Clod_King]

I don't know what year your truck is, but I plugged three vacuum lines when I ripped the heater system from my 89 sub.

I don't know where they all go, but I ordered a stand alone heater from summit, that's why mine are plugged.

 

[JimmyJuneau]

wha is the name of the heater you ordered? Does it hook up to your vents?