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gene
gene, RV Mechanic
Category: RV
Satisfied Customers: 1100
Experience:  28 yrs exp in the industry
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93 holiday rambler motor home P30 series no brakes have put

Customer Question

93 holiday rambler motor home P30 series no brakes have put 3 power steering pumps an 3 hydroboosts on works for 10 minutes an brakes go to floor no collapsed lines
Submitted: 2 years ago.
Category: RV
Expert:  Larry Welch replied 2 years ago.
Hi Larry here. Have you replaced the master cylinder?
Customer: replied 2 years ago.
yes twice
Expert:  Larry Welch replied 2 years ago.
And no leaks found?
Customer: replied 2 years ago.
no blowed thru all lines to make sure they are not collapsed have put on 3 of hydroboost an mastercylinders an powersteering pumps the brakes will work for about 10 minutes then no brakes an no powersteering
Expert:  Larry Welch replied 2 years ago.
I hate to ask, why the power steering pumps?
Customer: replied 2 years ago.
when the brakes stop working the powersteering quits too
Expert:  Larry Welch replied 2 years ago.
Okay, the power steering pump runs on a belt, the brakes run on vaccum. That is were I am confused.
Customer: replied 2 years ago.
belt is good does the hydrobooster run off vacum
Expert:  Larry Welch replied 2 years ago.
Yes it does
Customer: replied 2 years ago.
Where does it hook up at an where does it go too
Expert:  Larry Welch replied 2 years ago.
Connected to the booster pump and then to the intake manifold of the engine. If this doesn't help, I will open the question to other techs and maybe they can help.