2004 thermostat housing hose routing | Ford Thunderbird club group 1955-2005 T-Bird models

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2004 thermostat housing hose routing

  • Thread starter Thread starter KyTbird
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KyTbird

KyTbird

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Does anyone have a thermostat housing photo that shows the routing of the 3 little hoses that attach to the nipples? Someone has routed the two little nipples together and I know thats not right but dont know where they go. And shame on Ford for making that thermostat ordeal out of plastic. They could have just made it out of pot metal. Anything but plastic.

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KyTbird said:
shame on Ford for making that thermostat ordeal out of plastic.
Click to expand...
Shame on you for thinking that's the same plastic a child's toy is made from. LOL FYI your car probably rolled off the line 23 years ago. The "plastic" radiator in my 2004 Jeep TJ lasted 24 years before it cracked. Aluminum replacement Jeep radiator last about 5 years. Everytime I hear someone bring up the "plastic" thing it amazes me. How you even seriously posting you are frustrated a 2+ decade old part on a car that is exposed to 200+ degree heat needs replaced? What's on there is more durable than metal that will corrode.

Automotive plastic thermostat housings are made of high-performance plastics like PA66 (Nylon 66) and PPA (Polyphthalamide), which are selected for their high-temperature resistance, rigidity, and resistance to moisture and chemicals. These materials are often reinforced with glass fibers to further enhance their durability and thermal stability.

• PA66 (Nylon 66): This is a very common material due to its excellent mechanical properties, including high-temperature resistance and thermal stress resistance. It is often sourced from major chemical companies like DuPont, LG, and BASF.
• PPA (Polyphthalamide): PPA is another type of plastic used for its high thermal stability and strength, making it suitable for the demanding environment under the hood.
• Glass-fiber reinforced polymers: Adding glass fibers to materials like PA66 and others increases their rigidity and overall performance.
• Lightweight and durable: Plastic housings are chosen because they are lighter than metal alternatives, which helps with fuel efficiency, without compromising on the necessary strength or thermal performance for the application. [1, 2, 3, 4]


[1] https://www.x-rubberparts.com/application/automotive-product/custom-plastic-thermostat-housings/
[2] https://thermansol.com/technologies/thermostat-housing-materials/
[3] https://www.smartintlgroup.com/thermostat-housing-water-flange
[4] https://www.aprios.com/insights/polybutylene-terephthalate-durable-resin-for-high-performance-uses
 
KyTbird said:
Does anyone have a thermostat housing photo that shows the routing of the 3 little hoses that attach to the nipples? Someone has routed the two little nipples together and I know thats not right but dont know where they go. And shame on Ford for making that thermostat ordeal out of plastic. They could have just made it out of pot metal. Anything but plastic.
Click to expand...
Pic from my 2003 is attached (‘04 and ‘05 should be the same; 2002's are different). Does this help?

The curved hose just above the fill cap runs from the throttle body to the t’stat housing. That hose is a moulded FoMoCo product that’s now discontinued.

The other small hose (just inside the curve) is the return line to the degas bottle. It’s a long one, which came with a moulded end from the factory at the t’stat end, running back to the firewall and then to the degas bottle.

Not visible in the photo is another small hose that runs from a metal nipple on a boss at the top of the engine block (under the intake manifold) and then to the throttle body. It’s a fairly complex moulded hose that’s also now a discontinued part from Ford. It supplies hot water to the throttle body; the curved hose first mentioned above is the return from the throttle body to the t’stat assembly.

2003 cooling query.jpg
 
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