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Old 04-22-2018, 07:57 PM   #1
rcote20
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2003 ION-2 Sedan
Dizzy Power steering stiff after changing alternator??

Just curious, in January my alternator went bad. It was replaced with a used unit. Ever since, everything works as normal (no battery lights, no issues at all) EXCEPT for the power steering. It's working, but not a well as before. Could this alternator not be putting out enough power? Is there something I need to do after the battery goes dead to reset it? Not quite sure where to go from here! Car is an 03 Ion Sedan Level 2, 2.2L automatic.

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Old 04-23-2018, 08:50 AM   #2
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2003 L-Series 3.0L Sedan
Default Re: Power steering stiff after changing alternator??

There may be several reasons for erratic power steering; wiring to the eps unit, worn dc motor, insufficient/erratic power, loose drive belt/worn belt tensioner, worn alternator. Is the drive belt tight? Can you measure battery/alternator voltages? Good batteries should be around 12.5v. Engine idling voltages should be higher, between 13v-15v. Observe voltages while someone turns the steering wheel several times. Voltages should not drop below battery voltage. Raise idle a little higher and observe voltages while turning the steering wheel.

Since electric power steering relies on alternator power, a used alternator may not output enough power. In addition to measuring output voltages, store testing may help. Some stores can test battery and alternator in the car while others need them removed for bench tests in the store. Last is the possibility of a faulty or worn dc motor in the eps, wiring or faulty eps unit. Search for electric power steering issues and a link to articles about worn out dc motors.

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