[Chrysler300] Front suspension 300H
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[Chrysler300] Front suspension 300H

I have been working diligently to get my power steering working. It currently loses power boost when it’s needed, such as turning the steering wheel at low speeds.
I have two new pumps which I have swapped with no improvement.
I have installed several new drive belts (stock and 1/2 inch shorter.
I have used the correct tool and torqued the pump to 45 ft-lbs. It did flip over when I had it this tight.
I have replaced the hoses.
I had the steering box rebuilt 3 or 4 years ago at which time it all worked just great.
Additionally I have investigated other ideas which proved futile. 

Currently, I am preparing to replace the hoses again with hoses from Jeff Carter to ensure I am not restricting flow with either the suction or discharge hose.

I have a servo valve overhaul kit ready to remove and clean the servo valve.
I have a temp gun on order to monitor temperatures at the pump and valve.
I have checked for bubble or distrubance in the reservoir (none).

I spent quite a bit of time on the phone with a local company who specializes in steering components. We reviewed all that I had done and was about to do  with the following suggestions from them:

They say it is unlikely to be the steering box because I lose steering in both directions indicating a loss of fluid volume/pressure from the pump. But they suggested one think which is nagging-that I may have one or more front suspension components (ball joints?) which are binding from being dry, rusted etc. in fact, they were replaced last in 1968. I did replace the center link in 1984.

I am thinking of jacking up the car, disconnecting the steering gearbox, and seeing how difficult it is to turn the steering. My next step then sounds like a diversion to rebuilding the front suspension.  

Has anyone else had a problem with tight steering caused by old ball joints etc? (These are all “sealed lifetime lubricated”).
Thanks, Mike Moore


Posted by: Michael Moore <mmoore8425@xxxxxxx>

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