So i drove my 2019 straight to the dealership when had loss of power bogging and dash lighting up... seen its the tube sensor thing going to clutch fa

[Jason B]

I would agree with these statements if the hose had a clean break but the hose is literally disintegrating in my fingers. This leads me to believe it’s either poor manufacturing or wrong material for the job.

Photo of temp fix to get me to the store for some hoes

That's definitely a bad situation. But if the hose is in that bad of shape and hasn't torn apart yet, o, how is that hose even keeping the clutch from spinning, if that is its real purpose?

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[Jason B]

rubber always degrades over time.
there's probably a whole bunch of rubber compounds better suited for this location than what Ford chose.
I am sure Ford did their due diligence on selecting a rubber, but they fell short in their findings for whatever reason.
When you attend a dealership for service, including a multipoint inspection, they should be checking this part, as it falls under the "belts and hoses" portion.
If they aren't finding it and reporting the high number of failed or deteriorated parts, then Ford isn't getting the full picture of their poor selection.

There are several rubber hoses under the hood susceptible to heat, such as heater, AC, and vacuum line. Those hold up usually for the life of the vehicle. So why would this one be so much different? Probably saved Ford 2 cents per vehicle.

 

[Dr_Strangelove]

This is a coolant hose, correct?

I know anecdotally from working on older cars that coolant hoses can deteriorate very quickly with age. In cases where people get oil intrusion and intermix the old wives tale is you've got a couple weeks to clean them out before they split sitting on the shelf.

Curious if it's simply the case of the wrong kind of rubber handling the wrong kind of material and the stuff inside of the hose is causing it to degrade, not stuff on the outside.

 

[VAMike]

And you think all is as before covid?

Before covid Ford's excuse for shortages, delays, and decontenting was "it's new". Ford never had a handle on 5g ranger parts/production/assembly/etc issues, they just "solved the problems" by moving to the 6g ranger and resetting the counters. So yeah, post-covid is pretty much like pre-covid. (Written by somone whose 2018 order for a 2019 was originally delayed because Ford couldn't figure out how to make the doors for the scab, and then got backed up because they had trouble spraying bedliner fast enough, whose seatbelt broke almost immediately, whose ebrake boot has repeatedly cracked, and whose driver's seat wobbled because of the same issues Ford has been having across various models for a decade and "addresses" with a hose clamp...at least I got all my tiedowns.)

It's a shame that we're still dealing with the ramifications of the chicken tax preventing real competition in light trucks, because it's obvious that Ford doesn't see any reason to do better.

 

[TJC]

I am still highly curious if this is a band-aid fix, I was hoping that owners who were getting it replaced by the dealer would get or able to get a (DETAILED) reason for why this fails this way.
I have a theory but zero proof.
For me, I find it hard to believe that this is normal wear and breaking, especially one above with 2,700 miles on it.
Something in that clutch is causing too much force being applied to the support hose.

The reason why, I feel something is amiss, is on my 22, the module barely moves with engine running and I carefully reached down and held it and also moved it in the opposite direction of fan rotation expecting it to resist me. It did not.
Basically, the point is, there is no way enough force is being applied to break the hose on a working clutch.

So, I would monitor closely after doing this to ensure it holds.

I suspect that the hose is failing not due to undue high stress, but to decay with low grade stress. My thought here is that the hose material is of inferior quality, and can't handle the simple low stress rocking as the clutch (dis)engages. These failure points have been seen at both connections on different trucks. I'm thinking the torque, somewhat like P factor in fixed pitch propeller aircraft pulls the hose when engaging and releases the torque when disengaging, creating stress right where the hose flexes at the studs it is clamped to. Bend a wire often enough and it will break.

That's my admittedly simplistic theory. Thoughts?

 

[VESH]

I suspect that the hose is failing not due to undue high stress, but to decay with low grade stress. My thought here is that the hose material is of inferior quality, and can't handle the simple low stress rocking as the clutch (dis)engages. These failure points have been seen at both connections on different trucks. I'm thinking the torque, somewhat like P factor in fixed pitch propeller aircraft pulls the hose when engaging and releases the torque when disengaging, creating stress right where the hose flexes at the studs it is clamped to. Bend a wire often enough and it will break.

That's my admittedly simplistic theory. Thoughts?

I’m on board with this theory. The stress mustn’t be huge otherwise the the wiring would be ripped the instant the hose breaks. Instead myself and others have been driving around for an unknown period of time with a broken hose and the wiring taking all of the ‘stress’

 

[Jason B]

This is a coolant hose, correct?

I know anecdotally from working on older cars that coolant hoses can deteriorate very quickly with age. In cases where people get oil intrusion and intermix the old wives tale is you've got a couple weeks to clean them out before they split sitting on the shelf.

Curious if it's simply the case of the wrong kind of rubber handling the wrong kind of material and the stuff inside of the hose is causing it to degrade, not stuff on the outside.

It doesn't do anything but hold the wiring harness away from rotating parts. IMO, (to be verified) it's not there to hold the clutch from spinning. When the clutch fails, the hose and wiring become victims. IIRC, those that had the hose and harness ripped, also had to have the fan clutch replaced.
So, it's a what came first, the chicken or the egg.

Post #132 shows a hose that is badly deteriorated but hasn't had the clutch spin uncontrollably. Again, IMO, there is no way that hose is holding the clutch. But it does show that the hoses themselves are really low quality and can't take any kind of stress, whether physical or thermal.

 

[Dr_Strangelove]

It doesn't do anything but hold the wiring harness away from rotating parts. IMO, (to be verified) it's not there to hold the clutch from spinning. When the clutch fails, the hose and wiring become victims. IIRC, those that had the hose and harness ripped, also had to have the fan clutch replaced.
So, it's a what came first, the chicken or the egg.

Post #132 shows a hose that is badly deteriorated but hasn't had the clutch spin uncontrollably. Again, IMO, there is no way that hose is holding the clutch. But it does show that the hoses themselves are really low quality and can't take any kind of stress, whether physical or thermal.

Ok, in that case heat cycling would be the only thing that makes sense. Shame.

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