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1990 GMC Vandura 1500 Question: what causes power steering fluid to go from normal color to coffee (tan)

 

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fauts, Berlin, NH, September 28, 2011, 17:29
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replaced power steering pump twice, fluid goes light tan in color,brakes and steering almost fail in a mater of 2-3 days,master cyl seems to retain fluid and normal color.This is a 3500 cube van with a 350 engine, my Midas Brake mechanic is baffled so am I can not travel very far like this

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    patrick mannion from Greg Solow's Engine Room, September 28, 2011, 21:12
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    I am no expert unfortunately on GMC. There is a professional service called Identafix. http://www.identifix.com/info/about_us.htm They only deal with professional repair shops. They are in the Minnesota 651-633-8007 begin_of_the_skype_highlighting 651-633-8007 end_of_the_skype_highlighting. Your auto repair shop do all their diagnosis tests, and discuss your problem with a team of professional technicians great service cheap and very bright people. If the repair shop that are repairing your car are stumped this is a great service. This company only deal with automotive repair shops and don't answer questions for the general public but are an amazing knowledge base.

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