wssix99

iTrader: (5)

if the whole thing looks like a milkshake it's probably air in the system. How long ago did you replace the pump? Did you bleed the system? Do you have any leaks?

jdoyle

iTrader: (27)

Where do our power steering systems usually leak from?

How do you tell if the rack is going bad on our cars?

Anyone have a picture of some milkshake looking fluid?

thanks guys

LS6427

iTrader: (2)

Don't know what the usual line that leaks is....but I just sprung a leak in one of my high pressure lines. Its 12+ years old so I'm not really bitchin. Its the line that attaches to the reservoir by a metal line, then there's a rubber section, then another metal line that attaches to the rack. I found it because when I pulled into my driveway a few days ago I heard the pump make that grinding sound. I checked the level and it was low, pretty low. I topped it off and looked around and saw the leak. Luckily after I topped it off the sound is totally gone and its steering perfectly, so I guess its ok.

Mine is leaking from where the rubber hose meets the metal hose. Its leaking at the crimp. Very slow leak so I'll change it next week. But I learned something. A tiny leak in a power sterring system somewhere is just like a tiny leak in our cooling systems. My power steering fluid is all new, as of early last year when I did my after market power steering cooler swap. Now, my PS fluid is milky chocolate looking......apparently from the air that is getting sucked in when it starts cooling. It leaks when its pressurized and hot...it sucks in air when it cools down.

Interesting...........

.

Empatho

iTrader: (16)

would it be better to not have it at all, anyone ever tried it out?

wssix99

iTrader: (5)

Absolutely required. This article does a great job explaining why they were put in and the dynamics of the pump, which need the cooling: http://www.gmhightechperformance.com...all/index.html

mayhem2408

Actually, it a cooler and a heater. This applies to Transmission fluid and engine oil as well. The colder the fluid is, the thicker it is. This makes it harder to pump around. So you want the fluid to be hot, but not too hot or it will boil or burn. 100Deg C is a nice temp for the fluid. This is pretty close to the temp in the radiator. So by pumping the power steering and transmission fluid through the radiator, you will warn up the fluid quicker, but also stop it from getting to hot. It will maintain a comfortable working temperature.

Coolers that simple cool, may make the fluid to cool and work less efficient.
There is a method to GMs madness.