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#3542569 - 02/10/17 04:49 PM Re: Reliability of Blue Silicone Hoses [Re: 73vwTodd]
dubch87 Offline

Climber

Registered: 04/24/08
Posts: 576
Loc: NC
Revisiting this... I work slowly.

Originally Posted By 73vwTodd

All "blue" silicone hoses from 95-02 that I've seen in the yard are blue inside and out. The hoses from 2003 to 2011 are blue on the outside with a brown layer on the inside.

They all have Ford part numbers on them too for what it's worth. I think they just designed them differently in 2003. Not sure what the brown inner core does that the blue outer core does not?

EDIT: I just looked it up because I wasn't sure why they were doing that. I found a bunch of performance sites that were selling aftermarket cooling hoses, and apparently the brown inner-core is a type of silicone that has a higher tinsel strength. All the quality performance silicone hoses have that brown inner core for added strength. I guess Ford decided to up the quality in 2003 over the previous years.


I never installed the silicone hoses, because no matter what I tried, the inside never came clean. I scrubbed, soaked, used everything I could think of and could not remove the caked-on rust.

A couple of months ago, I came across an '05 in the yard with silicone hoses. Someone had already removed the hood, fenders, wiper tray, radiator, and header panel. I looked inside a hose and saw that it was perfectly clean, so I grabbed them all in what must have been the fastest radiator hose removal in history.

With that said, I think there must be something else special with the orange inside of the 03+ hoses, because these things just rinse out. I looked at an '07 and '09 at the yard today, and they all had perfectly clean hoses as well. There's usually a bit of "residue", but nothing like the all blue hoses on the -02.

Just FYI... I haven't even touched the one on the left. The hoses from the 99 never did come clean.





Also (if anyone is still reading this), I'm not sure why it took me so long to think of this, but is there any reason I can't use an oil cooler instead of buying a straight piece of silicone hose and an adapter, or getting someone to roll the ends of a pipe? Not hooking up the oil lines, of course. An oil cooler is $15 at LKQ, and seems like it would be less trouble since it's a direct fit.
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#3542745 - 02/10/17 06:45 PM Re: Reliability of Blue Silicone Hoses [Re: 73vwTodd]
Black_Sunshine Offline
Poobah

Registered: 12/09/10
Posts: 9687
Loc: AZ
You can just the oil cooler or a piece of pipe. I have a set that I plan to retro-fit soon. I'm going to use a pipe. I'm going to use a piece of pipe. I've had one in my Amazon cart forever now. Then I'm going make a bead on each end with some welding pliers or something. That's basically the cheapest, easiest way if you don't have a bead roller. The pipe costs more than the $15 cooler though. It's probably way heavier though.
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#3997540 - 12/03/18 08:43 PM Re: Reliability of Blue Silicone Hoses [Re: 73vwTodd]
dubch87 Offline

Climber

Registered: 04/24/08
Posts: 576
Loc: NC
Resurrecting... again. Can't believe these hoses have been sitting around for four years.

I noticed that the 03+ upper radiator hose (orange inside) is a different shape than what's on my NPI 2000, and it wasn't fitting between my radiator and thermostat housing. Overall they appear to be the same length, but the angles are different. I know the location of the power steering fluid reservoir moved from the timing cover to the fan shroud, and it looks like it's designed to angle around that.

However, I also noticed while comparing years that the angle of the thermostat housing changed in 01 (I guess for PI intake manifolds, for whatever reason?). Would swapping to the 90° t-stat housing solve this angling issue with the hose? I wouldn't think there is a difference between the aluminum cross-overs on the manifolds between NPI and PI that would prevent this from being a direct swap. Although now that I've written all this it does look like the bolt holes are different sizes.

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#3999430 - 12/28/18 02:57 PM Re: Reliability of Blue Silicone Hoses [Re: dubch87]
dubch87 Offline

Climber

Registered: 04/24/08
Posts: 576
Loc: NC
To answer my own question... NO! The 03+ upper radiator hose will not fit, period. It's very close using both thermostat housings, but not close enough. It may fit if the power steering fluid reservoir wasn't in the way, but I'm not entirely convinced.

The 03+ heater core hoses and reservoir overflow hose are a direct fit. I would put the 02- upper radiator hose on if I could ever get the inside clean. That stuff is caked on like cement.
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#3999438 - 12/28/18 04:08 PM Re: Reliability of Blue Silicone Hoses [Re: 73vwTodd]
Lance01 Offline
Member

Registered: 04/02/18
Posts: 369
Loc: Pa
Don't know if you guys know, but on the website Rockauto, Continental has high temperature blue EPDM hoses made just for the P71 Crown Victoria. They can withstand temperatures up to 500 degrees Fahrenheit.

I just put them on my Crown Victoria for a fraction of the price of the blue silicone hoses and they use standard hose clamps. My engine bay now looks great and they should last the life of the car really.

This isn't the 80s guys, all coolant hoses these days are EPDM and are very high quality and reinforced. Silicone hoses are totally unnecessary except for extreme duty use, race, or situations where high under hood temperatures will be seen such as turbocharged applications.

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#4081016 - 10/17/20 02:06 PM Re: Reliability of Blue Silicone Hoses [Re: 73vwTodd]
my2008P71 Offline
Member

Registered: 03/26/09
Posts: 150
Loc: Florida/orlando
I know everyone wants the blue hoses, but has anyone ever even had an issue with the black ones?

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