Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

what is this: control unit box air intake hoses

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Old Jan 22, 2008 | 09:23 AM
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Systek's Avatar
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Default what is this: control unit box air intake hoses

I am not sure what this hose supplies air to and searching didnt help any. Mine has deteriorated around the pleates and I would like to know if sucking in hot engine air will affect anything. That way I can possibly fix a problem I currently have and had no idea it was related to this hose...
 
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Old Jan 22, 2008 | 11:00 AM
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Default RE: what is this: control unit box air intake hoses

It happens to all of them. There is no real pressure on it but most folks just wrap the bad area with electrical tape.

...Lee
 
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Old Jan 22, 2008 | 11:24 AM
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Default RE: what is this: control unit box air intake hoses

did i read correctly? it cools the ecu under the hood?
 
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Old Jan 22, 2008 | 11:54 AM
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Default RE: what is this: control unit box air intake hoses

it cools the ecu under the hood?
That is its stated purpose but I would feel better about it if it didn't draw its "Cool" air from behind the radiator.

...Lee
 
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Old Jan 22, 2008 | 04:05 PM
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Default RE: what is this: control unit box air intake hoses

ORIGINAL: Ozark Lee

it cools the ecu under the hood?
That is its stated purpose but I would feel better about it if it didn't draw its "Cool" air from behind the radiator.

...Lee
yeh, that is why i questioned its intended purpose...
 
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Old Jan 22, 2008 | 06:37 PM
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Default RE: what is this: control unit box air intake hoses

But also the A/C system cools the ECU's as well.
Look at the firewall you will see a pipe come out of it and go to the bottom of the air box.
That is where it comes from the A/C system.
 
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Old Jan 23, 2008 | 08:33 AM
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Default RE: what is this: control unit box air intake hoses

Well, my obvious thought is that if Volvo put it there, it is there for a reason. Therefore it is probably a good idea to fix or replace it
 
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