Is This a major problem?
The hose it self could have been replaced at one time with hose that is not designed to hold ps fluid and is deteriorating...or the fluid is contaminated...or the rack is falling off the car...or a bolt is missing in the reservoir mount...or...many things. Maybe start by replacing the short hose with a new return line??? Give a little more detailed information and/or pictures - I am certain there are people here who would love to help.
Also....was there a clamp holding the line on. Should have been one on there. Maybe you just need a better clamp....or a new clamp.
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Use whatever you want. Degreaser, SeaFoam, CRC spray.......something that will completely clean the alternator. I used a full can of WD-40 when power steering fluid got all over my alternator. I drenched it, let it sit and eat the fluid for a little while....then rinsed it with a strong water hose. If you don't clean the PS fluid off the alternator will start giving you trouble and/or fail.
Or you can just call an alternator shop and ask them what's ok to spray on it. But all the chemicals I listed above have worked fine for everyone that's used them.....JUST RINSE GOOD WITH WATER AFTERWARDS.
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definitely clean your alternator- disconnect the battery and remove the alternator. depending on the severity of oil in it, you might need to disassemble it to degrease and clean it, or turn it in to the parts store for a new one. oil in that can definitely cause a fire, not to mention if it's all over the exhaust manifolds.



