Broken Hose in Engine - Help

[got3fords]

Does the Ford Pass work with hood open ?, it shouldn't, but it might... I'll test it while I'm out here...

Nope , cannot remote start with hood open...

Actually, I just recently discovered that myself, I had opened the the hood to clean the air filter and must not have closed it all the way. The next morning I went to start it with the app and it said something like "cannot start, hood open."

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[Grumpaw]

With the factory hose being formed, I'm curious what kind of lateral pressure is being exerted on that assembly by using non formed hose? I've never seen that part dissected, so no clue, just curious.

Use this formula to determine.....
E=MC2

 

[JasonTremor]

Use this formula to determine.....
E=MC2

It looks like a fragile item, but likely is stronger than it appears.

 

[airline tech]

With the factory hose being formed, I'm curious what kind of lateral pressure is being exerted on that assembly by using non formed hose? I've never seen that part dissected, so no clue, just curious.

If you disconnect the hose the module just free floats - you can move it side to side with ease.
(Engine Off)

With the engine running there is not much force being applied (rotational force) towards the engine bracket (mounting nipple)
The module rides on the shaft (spinning) between the back of the clutch and the mounting nut

I VERY Carefully snaked my hand down to the module with it running and rocked it back and forth, all that I feel is the slight vibration of the shaft spinning in the module.
PLEASE DO NOT TRY THIS - It is dangerous procedure.

My thoughts on this are that if anything (small stone or debris) gets caught between the module and the back of the fan clutch it may cause the module to wedge and then grab and make it want to spin with the fan. (Ripping the Wire Harness) as it spins.
or
Fan Clutch (Bearing) wear causes the Clutch to rock backwards, sandwiching (wedging) the module and causing it to grab.
or
Wear on the Race of the module (Riding on the Shaft), causing it to grab and spin.
There does not appear to have any kind of bearing at this point.

I have yet to determine the design reasoning for the flexible hose vs a solid mount except to allow some movement (free float) of rotational force.

 

[mtsoxfan]

Mine looks and feels solid , weird white and yellow dot pattern on hose though...

Mine is the same, dots and all. 44k and feels like new. Damn this 2019.

 

[Fazzie01]

Does the Ford Pass work with hood open ?, it shouldn't, but it might... I'll test it while I'm out here...

Nope , cannot remote start with hood open...

Wow. It is good to know that. Thanks!

I'll still probably unplug it when dealing with spinning things...

 

[airline tech]

What is the length on that piece of hose? Pre-emptive fix about to happen...

As long as you get somewhere close to the OE length, I don't think it matters.
The OE hose is a formed hose, and cannot be purchased separately from Ford, it is part of the Fan Clutch assembly.
So, you have to have a little longer hose to fabricate a replacement.

At one point I thought it was imperative to have an exact match and get the module in the exact mounting position but decided that was not necessary as the module is just a Hall Effect Sensor.
It is picking up rotation speed of the fan from the back of the clutch.
Fan Speed Sensor - it uses this input to tell the PCM what the speed is and then the PCM uses that input to (PWM- Pulse Width Modulate) the internal fluid movement for the actual speed control.

So as far as I can tell, hose length will determine the actual resting position of the module, but it does not affect the actual job of the module as it will still pick up rotational speed.

 

[Stevedbvik1]

If I can turn on my truck from the internet, anyone can... Now I'm not paranoid, but common sense seems appropriate in this situation.

“Is he walking towards his Ranger?”

 

[NotBudule]

Mine is the same, dots and all. 44k and feels like new. Damn this 2019.

The dots are strange and appear to be hand painted little blobs , not neat or printed on the hose ...

 

[Msfitoy]

I was sure mine would crumble into dust if I squeezed it but...looks and feel like new...117K miles...amazing!

 

[moorejl57]

How much do you want to bet it used to be a metal bracket and someone in Australia did a field repair with a piece of hose and Ford went ?

 

[Fazzie01]

“Is he walking towards his Ranger?”

It sure feels like that when you step near it and the fuel pump starts going. PS. I don't have the proximity key... ?

 

[got3fords]

I VERY Carefully snaked my hand down to the module with it running and rocked it back and forth, all that I feel is the slight vibration of the shaft spinning in the module.
PLEASE DO NOT TRY THIS - It is dangerous procedure.

Not as dangerous as crawling underneath a twin Piper with 540cui engines to check something that requires them to be running. Scary, but boy the sound of that exhaust was awesome! I used to be a general aviation mechanic.

 

[airline tech]

Not as dangerous as crawling underneath a twin Piper with 540cui engines to check something that requires them to be running. Scary, but boy the sound of that exhaust was awesome! I used to be a general aviation mechanic.

Still a common practice/ need even in commercial aviation, mostly for leak checks after maintenance.
As long as you keep engine at idle and keep your body inside the safety area it is safe.
It is still a dangerous part of the job and mechanics have made an error and been sucked in - the 737 engine is the most dangerous as the engine inlet is lower to the ground.

 

[ChiefQM]

As long as you get somewhere close to the OE length, I don't think it matters.
The OE hose is a formed hose, and cannot be purchased separately from Ford, it is part of the Fan Clutch assembly.
So, you have to have a little longer hose to fabricate a replacement.

At one point I thought it was imperative to have an exact match and get the module in the exact mounting position but decided that was not necessary as the module is just a Hall Effect Sensor.
It is picking up rotation speed of the fan from the back of the clutch.
Fan Speed Sensor - it uses this input to tell the PCM what the speed is and then the PCM uses that input to (PWM- Pulse Width Modulate) the internal fluid movement for the actual speed control.

So as far as I can tell, hose length will determine the actual resting position of the module, but it does not affect the actual job of the module as it will still pick up rotational speed.

I bought a foot of 3/8 " fuel line hose this afternoon and will change it tomorrow. Thanks!

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