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Quick question for the gurus. I own a 2019 F750 with 25k miles. While performing routine maintenance and while the engine was COLD. I noticed that the upper radiator hose was collapsed, is this normal ? Thank you very much for any insight.
PS - I understand this truck is still under warranty, my issue with the local commercial ford dealership is that they are not quick at repairing and even simply checking our truck when needed. I cannot afford to have the truck sit idle at the dealership for 2 to 3 days. I own 2 - 2019, the service has been very disappointing.
That's nuts. I'd find a new dealer if you are not satisfied. I can't say if there is supposed to be a spring there inside to prevent that from happening. I'll go look at my truck but you have a stronger beast there with the newer gen of the 6.7. Maybe some air in the system?? How are your primary temps?
Collapsing of the upper hose is not a serious isuse as it is the return side of the engine coolant going the radiator. The lower hose collapsing would be a serious issue.
I would agree above that it might be a bad radiator cap not letting the engine recover coolant back into the engine from the expansion tank.
Remove the expansion tank/radiator cap, let the engine come to operating temperature and check you coolant level. If below the hot level mark, add coolant. If full, install your current cap and see what the hose looks like in the morning. If no change, see if you can have the radiator cap tested at the local parts short of your dealership.
Ya my 15 does the same thing. I replaced the cap on the overfill tank and it made no difference. I talked to my diesel guy and he said don't worry about it. i don't understand why this is happening but after 5 years it has made no difference.
Ya my 15 does the same thing. I replaced the cap on the overfill tank and it made no difference. I talked to my diesel guy and he said don't worry about it. i don't understand why this is happening but after 5 years it has made no difference.
The answer is quite simple. When the engine heats the coolant, the cooling system pressurizes. As the the pressure goes up, the cooling system expels coolant into the expansion tank. When the engine cools down, the cooling system attempts to reclaim the expelled coolant from the expansion tank. If the cooling system can't recover all the coolant it expels, then you have a vacuum created in the cooling system. The only items capable of collapsing are usually made from rubber. Some of these items are more rigid in construction (heater hose) or contains spring/re-enforcement within the hose such as the lower radiator hose, So, the only hose, for the most part, that can collapse much is the upper radiator hose.
