Steering Rack Leaking

Lgs said
I read this earlier and know when we changed to the third rack, we did not burp or purge the rack. I have passed this on to my mechanic to assure we are doing this for the next rack.

As for the fluid, not a dumb question at all as this came up several times.....I for one would not have thought a different fluid would make the kind of impact we are talking about, HOWEVER Bill Reilly felt differently. Originally I used an O'Reilly store brand. Bill suggested we drain the system and use NAPA's brand as he stated a friend of his had inside knowledge that the NAPA brand is made by a top lubrication manufacturer. So, that is what I am using now....

And my only thought on the burping of the system was if there were trapped air and the fluid was causing a inrush of pressure and the air not escaping the system becoming pressurized and expanding compounding the system pressure. Much like an intensifier, and something had to give. Again just a theory. Fluid viscosity will effect the pumping pressure.

I've installed many racks and pumps and have never had this issue come up. Hell the only vehicle I actually burped properly was a 2001 Ram 2500 4x4 with 5.7 Cummins. It was so heavy in the front we had to jack it up to get the fluid to circulate.