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Old Dec 23, 2007 | 01:54 PM
  #1  
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thermactor air system

does anyone have or know where I could find a good picture of the part of the thermactor air system that is located between the engine and firewall of an 89 Bronco with a 351? I'm getting a code 44 and 33. I know there is some hose that comes off the diverter valve that snakes around back there and connects to something that is supposed to be attached to this pipe that leads down (mine is not connected, I believe it has rusted through, giving me these codes). I know this is a bad description, but I can't see back there, and I cannot find a good picture of what is back there. If anyone has a pic of one after they took their engine out, or anything (and not that Ford "this is what most systems have" silly drawing) I would be quite grateful.

Thanks again guys, and Kemicalburns, thanks for the advice on the throttle body from my last post.

Mike
 
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Old Dec 24, 2007 | 08:05 PM
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Is yours the type with 8 individual tubes to each cylinder on the exhaust manifold, or the newer kind with one tube to the back of each head?
 
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Old Dec 24, 2007 | 08:32 PM
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The newer kind with one tube going to each head.
 
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Old Dec 24, 2007 | 09:56 PM
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I don't have a pic handy, but I should be taking off the upper intake in a few days to install new rocker arms. I can get a pic then.

I've had mine apart enough times that I should know the system pretty well. It's always in my way when I'm working on anything.

I'm not sure exactly what you're looking for, but there's a check valve in between the heads. It's connected by a pipe to each head, and there's a rubber hose (that kinda looks like a question mark laying face down) feeding into the top of it.
 
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Old Dec 25, 2007 | 12:07 AM
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I need one of these hoses.Local ford parts guy says thay are discontinued.Anyone know where I can get one for a 96 bronco?
 
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Old Dec 25, 2007 | 12:32 AM
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http://campaigns.ford-trucks.net/cam...lick.php?n=209
I think this will link to a Ford dealer in Seattle that will ship the part, or parts to you. They are a sponsor of this site.
 
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Old Dec 25, 2007 | 06:24 AM
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Not sure what hose you mean. Is it rubber? Steel? If its the same as a 5.0 I might have one. Picture????
 
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Old Dec 25, 2007 | 09:39 AM
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Here is a link to a picture I took when I took mine off for repair.

http://www.supermotors.net/getfile/3...be-closeup.jpg
 
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Old Dec 25, 2007 | 02:12 PM
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Mine looks like that one, except not rusted out. That check valve is seriously blown out.
There's also the dump valve upstream from the diverter.
 
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Old Dec 25, 2007 | 08:11 PM
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That is why I took it out. I replaced the valve and cross over tube.
 
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Old Dec 26, 2007 | 05:08 AM
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The rubber hose that comes off of the check vale that is on top of the cross over tube.That is the one that I need.
 
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Old Dec 26, 2007 | 03:45 PM
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that pic is perfect!! what's broken on my truck is the top metal piece is separated from the tee juncture that the three hoses connect to. So I'm not sure if I need one piece, or two pieces, and what is the name of the item(s) I am looking for? And, this is the question I'm afraid to ask, but how hard is this to remove while still on the truck?
 
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Old Dec 26, 2007 | 04:21 PM
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Here is a diagram of the back side of the engine showing the check valves and the control or diverter valve. On mine the check valve had rusted. My dirverter valve was OK. I think you can reach the diverter valve without removing anything else.

http://www.supermotors.net/getfile/314367/fullsize/1988-5.0-thermactor.jpg


Another option would be to remove the upper intake manifold. I had to remove the passenger side inner fender to remove the whole thing.
 
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Old Jan 2, 2008 | 09:12 AM
  #14  
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Fixed!

thanks for the pics ahd the advice, guys!! turns out my issue was the check valve that leads to the converter was what had broken. basically came apart at the seam. And, with the pics to guide me, feeling around back there was tons easier, since I at least kinda new what I was feeling for.

Mike
 
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Old Apr 9, 2008 | 06:04 AM
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Guys, I am trying to hook up my diverter system (the one that oyu were discussing here). Could one of you maybe take some pictures or trace back the vacuum lines from the diverter? I can't find out which solenoid operates which part of the diverter/bypass system, and I sort of want to reconnect it.

Do any of you still have the vacuum lines connected up to this guy?
 
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