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metal heater hose under intake: replacement question

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Old Oct 12, 2013 | 05:00 PM
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metal heater hose under intake: replacement question

I had a thread on my navigator leaking, and it turns out it was exactly as some of you diagnosed, the hose running under the intake.

My question is, should I buy another metal one, or just use some regular heater house in its place? What would the drawbacks be of using rubber vs metal? Could it cause any future problems down the line. That house costs a pretty penny, and if it's unnecessary, then I'd love to save that cash.
Thanks in advance
 
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Old Oct 13, 2013 | 09:45 PM
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The rubber hose can lose it's pliability and develop cracks as a result of the engine heat. If you wish to save money and use hose, you're better off running it above the upper intake instead of below it. That way it will not be directly exposed to the heat from the 8 cylinders area.
 
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Old Oct 13, 2013 | 10:45 PM
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Thanks. I'll just buy the OE one. Next question, sir. The hoses that go from the heater core to the rear heater. I know one comes from the heater core, splits to the water pump and goes to the back of the truck. The other comes from the heater core, goes to the rear like the other, but where behind the.block does the other end of the "t" go? I have a broken metal pipe, about 4" long connected to it, and no idea where it broke from.
 
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Old Oct 14, 2013 | 10:01 AM
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Originally Posted by Emerald Navi
I have a broken metal pipe, about 4" long connected to it, and no idea where it broke from.
There are a few different configurations, but based on your description it possibly goes to the rear passenger corner of the upper intake.
 
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Old Oct 14, 2013 | 10:59 AM
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So I'll be buying a new intake too? I'm starting to hate this truck now.
 
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Old Oct 15, 2013 | 02:47 PM
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Originally Posted by Emerald Navi
So I'll be buying a new intake too?
Well check it first before you buy anything.
 
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Old May 5, 2018 | 11:41 AM
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replace hvac under intake heater hose 2000 expedition 5.4

Originally Posted by alloro
The rubber hose can lose it's pliability and develop cracks as a result of the engine heat. If you wish to save money and use hose, you're better off running it above the upper intake instead of below it. That way it will not be directly exposed to the heat from the 8 cylinders area.
Question- how do you connect to water pump running over top of intake ?what parts need to be removed?please answer need to save money with temp fix.
 
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Old May 6, 2018 | 10:41 AM
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Originally Posted by a1lady
Question- how do you connect to water pump running over top of intake ?what parts need to be removed?please answer need to save money with temp fix.
Here is the "how to" video:
 
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