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Wanted Steering Wheel Mind Of It's Own

Turdle

Habla tortuga
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Posted here for views.

Power rack and pinion with no electric assist.

What would cause the steering wheel to rotate back and forth at idle? Car does not need to be moving for this to occur.
2003 Grand Marquis.
 


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vroomzoomboom

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if its like our racks, there is a pressure switch or valve in the rack on the presser line that might cause that if i am not wrong
 




Rick

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My vote is for a valve issue as well. I have seen it happen on regular power steering boxes, but I'm not very familiar with R&P.
 




Turdle

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Thanks guys!

Is this located in the rack itself? Looking on line, without being under the vehicle yet to see for myself, show this may have electric assist also?

Almost like electric and hydraulic combined. here is an electric "pressure switch" listed. MOV? LIMO option?
Car was at a shop but the problem is intermittent. I have seen the problem myself but of course it was not presented while getting tires put on. They suggested a new EGR valve as a fix for a possible engine stumble--misfire. lol
 




vroomzoomboom

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it is in the rack. its about the diameter of a dime. its in the port if you want to call it that where the pressure hose threads into. you can only get to it when you take the pressure hose off. or thats the way it is on a 2nd gen explorer
 




vroomzoomboom

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94078408_988363968224669_5781497885652680704_n.jpg


thats what they look like on 2nd gens. not sure what they would look like on what your working on. i also cant tell you how to get them out. tried with a small screw driver and it didnt want to come out. mind you this was a BFN rack......was......ignore the saws all marks. long story....
 




KurtECV

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The VAPS steering module varies the amount of power assist to the driver. As vehicle speed increases, the amount of power assist decreases. It also does show two different systems whether it has air suspension or not. It does sound like a hydraulic system problem. Possible clog in the system somewhere.

When it is malfunctioning, is there an audible strain on the pump? We all know how noisy ford pumps are :laugh:
 




vroomzoomboom

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or going on rockauto there is a

power steering control valve

404-a__ra_p.jpg


or a power steering pressure sensor

PSS44T_Front__ra_p.jpg


those are for a grand marquis
 




Turdle

Habla tortuga
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Welp,
Sons car, finally got it over here and changed the power steering pump , going with his friends advice and ignoring my friends advice. Now, we will heed my friends advice because while the steering is quiet now, the problem still shows near lock . Time for a rack.
 




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