I have a leak and loosing power steering fluid.  I changed the pump, but I'm leaking fluid frowim the hydraboost near the vacuum brake booster.

Is this an O-ring I can replace or does this mean a re built hydraboost unit from NAPA?

 

I also have no vacuum for switching the defrost and vent, is this related?

 

Thanks for any suggestions

 

 

Off topic but, By your call name you are a buick guy right  

Yes if your leaking power steering fluid from the hydra boost you will need to replace it. The lines going to it from the power steering pump are flared fittings with no O-rings. Your vacuum issue is a separate problem. If you replaced the power steering pump and your truck is having a vacuum problem the vacuum pump is located in front of the power steering pump. So you may want to check the vacuum line coming off of it.

Your vacuum problem is probably just a vacuum line unhooked. Start by finding the line coming off your vacuum pump and trace it out.Also make sure you have no cracked line(s) anywhere too. The HVAC system 'defaults' to defrost anytime there is no vacuum.

thanks to all who replied, I also noticed the vacuum pump is spewing oil, so does this mean a new pump, or can the seals be replaced?

 

thanks to all who replied, I also noticed the vacuum pump is spewing oil, so does this mean a new pump, or can the seals be replaced?

 

 

I just did a vacuum pump rebuild for a whole $13 bucks and about 2 hours time...

http://articles.mopar1973man.com/2nd-generation-24v-dodge-cummins/26-engine-systems/469-vacuum-pump-rebuild

I just did a vacuum pump rebuild for a whole $13 bucks and about 2 hours time...

http://articles.mopar1973man.com/2nd-generation-24v-dodge-cummins/26-engine-systems/469-vacuum-pump-rebuild

Got any hydroboost rebuild articles? or links to? I got that looming on the horizon.