94 E-150 van, rear heater not blowing hot
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New User
Joined: Dec 2003
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From: ohio
94 E-150 van, rear heater not blowing hot
i have a 94 E-150 and my rear heater is not blowing hot air. is there a valve somewhere? Is it suppost to blow same as the front or is it just a fan? PLEASE help im in Ohio and its cold outside.
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Last edited by joe evans; Dec 23, 2003 at 05:45 PM.
Elder User
Joined: Aug 2002
Posts: 833
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From: Port Perry Ont Canada
Hello and Welcome to FTE Joe Evans 
Try posting this down in the 68 to Present Full-size Van Forum.
Spend a little time reading the individual forums before you post, you'll get better responses in the right forum
Try posting this down in the 68 to Present Full-size Van Forum.
Spend a little time reading the individual forums before you post, you'll get better responses in the right forum
New User
Joined: Dec 2003
Posts: 1
Likes: 0
From: Ohio
I had this same problem on a 93 E-350.
The rear heater is just that, a heater. If you look under the van, near the rear wheel you should see a supply and return heater hose going to the rear heater. The cause of no heat in my case was this hose being "bypassed" so that no coolant was getting to the rear heater core.
If you reconnect this hose (should that be your problem) remember that it may have been disconnected because of a leaking core in the back, watch out for that. Also, make sure the hoses are not resting or rubbing any part of the frame. They will wear through and you'll lose your coolant.
Hope this gets you warmed up again.
The rear heater is just that, a heater. If you look under the van, near the rear wheel you should see a supply and return heater hose going to the rear heater. The cause of no heat in my case was this hose being "bypassed" so that no coolant was getting to the rear heater core.
If you reconnect this hose (should that be your problem) remember that it may have been disconnected because of a leaking core in the back, watch out for that. Also, make sure the hoses are not resting or rubbing any part of the frame. They will wear through and you'll lose your coolant.
Hope this gets you warmed up again.
Cargo Master
Joined: Dec 2003
Posts: 2,022
Likes: 4
From: Redford, Mi.
Hey Joe there is a vacuum operated valve somewere that shuts off the hot anti-freeze when your using the AC.
I need to replace the one on my 99 E250, you can just put a piece of pipe in there to by-pass it. Feel the hoses going back to the rear heat, after the truck is warm they should be warm. If not its either the valve or the heater core in the back is plugged. The hoses usually run down the drivers side underside.
I need to replace the one on my 99 E250, you can just put a piece of pipe in there to by-pass it. Feel the hoses going back to the rear heat, after the truck is warm they should be warm. If not its either the valve or the heater core in the back is plugged. The hoses usually run down the drivers side underside.
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