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Power steering inop.

(1997 Mitsubishi Eclipse)
in Spring, TX on August 16, 2009
How do I troubleshoot the system to determine if it is the pump or the steering gear? Could it be electrical? the wire to the pump pressure switch was disconnected. When I reconnected it, all it did was make the rpm surge. It has headers and some of the wiring is cooked a little. Thanks!
Displaying 1 answers & 1 comments
Popular Answer
on September 16, 2009
Hi, What did you find was the cause of the steering problem?
Thanks for your time!
on September 21, 2009
below is a response from "skeeter" The Texas car doctor when I sent an e-mail to his radio show:

You will have to have a shop or AZ cancel the light and code with a scanner.
Next time leave the engine running and loosen the PS hose at the rack or
there is a bleeder screw that you can use on the rack itself. On these cars
the PS shaft breaks right at the pulley. When the pulley slides back with
the piece of shaft sticking out it grabs and starts pumping so don't be
fooled by the fluid pressure spraying fluid. The high side hose may have
come apart inside which blocks the fluid pressure from the rack! Make sure
that you have pressure out of this hose at the rack to be sure of yourself.
I have seen the fluid lose its viscosity then turn in to like water!! It
will not carry the pressure to turn the rack. You can remove the PS belt off
the pump to see if it builds any pressure at all or if the shaft is
fractured. The sensor on the pump raises the engine idle when the car is in
a tight turn at low speeds. It keeps the engine from stalling out in tight
low speed turns. It is shorted out. If it is doing ok you can do without it.

So far, I have unhooked the hi side at the rack and started the motor and it sprayed fluid, but not sure it was a lot of pressure. I am going to blow out all the fluid and replace it with fresh and put it all back together. Check back in a week or two for update.

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