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prgynt

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Joined 2 years ago

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Re: Brake hose failures
time2roll wrote: This is the hose mounted on the solid rear axle and the only real flex is the very slight movement of the caliper? Do I have that right? If so there should be virtually no mechanical stress on the brake line. Either the line is defective or an incredibly odd road hazard. Any pictures? I would be getting my next hose direct at a Ford dealer. So I found the exhaust line had broken at the muffler. My theory is hot exhaust overheated the brake fluid,made the hose fail. I just replaced the entire exhaust line and muffler, will need to take trailer out to test it. I think the exhaust got really hot going up the mountain pass pulling the trailer, then hose failed on downward side.
Jul 29, 2023 Place Tow Vehicles
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Re: Brake hose failures
BILDER wrote: Look for some type of over travel of axle. Made lot of hoses, pulling apart at the crimp is not a normal failure from pressure. more of stress from alingment, twist or pull That is a really good idea, thanks!
Jul 24, 2023 Place Tow Vehicles
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Brake hose failures
I have a 2004 F150 5.4L towing a 16ft travel trailer with dry weight of around 4500lbs. Been towing it over mountain passes for years. This last weekend when going over a low pass, my passenger rear brake hose ruptured. I managed to get it down the hill into town before I lost all fluid. I figured it was 20yrs old, just failed. A brake shop replaced the hose, bled all the brakes. Not sure what brake hose they used. Got to my destination including going down another pass. 2 days later driving home, new hose pops off where crimped. Had to disconnect trailer, get truck towed to auto parts store. No repair shops open on Sunday. Figured it was a bad hose. Bought a new one at NAPA, installed it myself, bled brake line. 50 miles later going down another low pass, hose pops off same as earlier. Brake fluid is very hot. That is 3 hoses in 48hrs. Don't know make of brake controller offhand. Was thinking if trailer brakes getting old, not sharing the load and putting too much stress on truck brakes? Maybe fluid getting too hot and causing failure at weak point (where hose is crimped to connector)?
Jul 24, 2023 Place Tow Vehicles
Tow Vehicles
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