Pulled dash to replace heater core, but..
Thread Starter
|
Senior User
Joined: Feb 2004
Posts: 387
Likes: 0
From: new braunfels ,tx
Pulled dash to replace heater core, but..
The ac/heat is only blowing out of the defrost only. Where is the blend door that controls the vent/floor/defrost located at.
What could cause this problem.
What could cause this problem.
Moderator
Joined: Dec 2005
Posts: 2,815
Likes: 148
From: Billings, Montana
Right on the interior side of the heater core. You need to pull it to get the core out. If your AC/Heat is only blowing out the defrost vent and your getting cold and/or warm are out this vent when you adjust the temperature, then your issue isn't the blend door, you most likly have a vacuum leak somewhere. These vacuum leaks are commonly either the fittings on the PCV valve or theres a small line that runs behind the battery that have been know to get worn and leak also. Check these first
Thread Starter
|
Senior User
Joined: Feb 2004
Posts: 387
Likes: 0
From: new braunfels ,tx
Thanks but It fixed itself. The heater core we replaced. Think it just needed a a minute or so to build up vacuum after having the whole system tore apart for a few days.
Works fine now.
Thanks,
aggie05
Works fine now.
Thanks,
aggie05
Thread
Thread Starter
Forum
Replies
Last Post
mappy881
Cooling, Heating, Ventilation & A/C
5
Jan 4, 2016 06:37 AM
jennshusbum
1999 - 2003 7.3L Power Stroke Diesel
8
Jul 26, 2014 10:07 AM
