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Old 08-12-2018, 07:21 PM   #1
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Heater Hose Replacement - 2018 Alante

Has anyone here replaced heater hoses on a newish F53 based motorhome? I have a 2018 Alante and while Jayco and Ford argue about who is responsible for fixing heater Hose issues I've decided it's faster to just do it myself....


Both my in and out bound heater hoses have sprung leaks. I want to replace them entirely instead of just cut/piece in new sections since they must be bad hoses... I don't even have 4500 miles on it yet.



I'm just looking for info from experience so when I get the dog house open and start the job I know if I should expect any surprises or if anyone has any tricks to speed up the job. Thanks in advance...
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Old 08-12-2018, 10:23 PM   #2
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Mine leaked and I know of others that have had that problem.

The hardest thing about removing the doghouse is finding the screws. Once removed I made sure the screws are visible outside the carpet so removing it again is simple. A search here should get you some tips on finding the screws.

There is lots of room underneath there, you might be able to do it without removing the doghouse. (After you have the antifreeze drained.) Ford uses those stupid spring clips on the hoses.
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Old 08-13-2018, 05:11 AM   #3
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So you think I might be able to get to the hoses without removing the dog house? I haven't done anything more than change the oil on this rig yet and haven't had a chance to take a look from the bottom up on this issue.

I'll take a look after work. If this can be done without removing the dog house I will be a happier camper...
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Old 08-14-2018, 05:47 AM   #4
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After the rain let up yesterday I had a chance to take a look under the motorhome and I learned two things.... (1) The heater hoses can be changed out from under the coach, eliminating the need to open up the dog house, when you work from within the passengers wheel well. (2) I found out why the heater hoses failed.

I'll take some pics when I actually fix the problem, but no stores near me have heater hose in stock so I am waiting on Amazon to deliver two 6' sections of Gates hose. However, I would advise everyone to check their coach to ensure they don't have the same problem waiting to happen....

The heater hoses are routed through the same "hole" in the rubber flap that separates the engine compartment from the radiator/battery area. The spring clamp that secures the oil fill neck to the hose that runs to the engine block is positioned such that the sharp edges are aimed directly at the heater hoses. In my case the hose rubbed that edge enough that it eventually got snagged on it and once it was stuck to the clamp the next time the coach twisted/rolled and put some pressure on the hose the clamp punctured it.

This could be easily fixed at the factory if Jayco spent 3 seconds to spin the clamp around so the sharp edges face away from the heater hoses, which I plan to do and will take pics. I would recommend everyone take a look at their setup though to ensure they don't have a heater hose hole waiting to happen.
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