Question about 2003 Chrysler PT Cruiser

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PO551 fault code on PT cruiser...power steering??

PO551 fault code on PT cruiser...power steering pressure switch. Engine light has now gone off, do I still replace or is it just acting up?

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Power steering pressure switch should be replaced. This error P0551 appearing and engine sign lights up because this switch helping to maintain engine rpm during turning steering wheel on low speed (during parking process for example). Some cars was manufactured without this switch. Driving is ok if you have this error, but prepare yourself to fix this problem soon. (:
Good luck!

Posted on Jul 11, 2013

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I would check the power steering fluid to make sure it isn't low. if that checks out then i would just keep an eye on it.

Posted on Jul 30, 2010


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The power steering pressure switch is on the steering rack. It senses the pressure in the system, and when the pressure goes high from turning the steering wheel, if you are at idle it will raise the idle speed slightly. you may not even notice that it's not doing it anymore. This isn't an uncommon problem on these cars. It's very likely that you'll need a new switch. It threads into the back of the steering rack and has a two wire electrical connector.
------------- This will help.Thanks.Helpmech.

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