Flex brake line

[cavell]

got car last week. Sitting for 1 yr. I found driver frt wheel hard to turn. I replaced caliper. And used flap wheel to clean rotor. Drove and car had tug to left. And the light rust marks on rotor were untouched. I loosened flex hose and pumped brakes and no fluid came out of fitting. So, new flex hose. They do collapse been told. Maybe hose was keeping some pressure on caliper piston and causing drag? Caliper looked really crusty, I drove it a bit and car stops evenly now, and rotor is shiny

 

[wilamowski3]

I've been chasing an issue with my 2013 Equinox for a couple of months. While driving it would develop a severe vibration from the front end into the steering wheel. Let the vehicle sit overnight and it would go away, only to come back again later. I replaced control arms, engine mounts, wheel bearings, calipers and drive axles. Still kept coming back! I finally did some queries with Copilot AI. Apparently, in the timeframe my vehicle was built there were issues with brake hoses. Not a collapse issue however. It's an internal failure of the hose with aging. A portion of the rubber will brake off in kind of a flap. Step on the brake when cold and pressure is applied to the caliper piston. But, after you release the brake the pressure doesn't go away because the flap of rubber is sealing the hose off. Ater sitting overnight the fluid leaks past the flap releasing the pressure until it all starts all over again. Apparently not just an issue with Equinox. More vehicles affected in that time frame.