It was loss of power assist...so manual steering going down the road, akin to having a power steering pump go out on a hydraulic system. Not too bad at higher speeds but 5mph and below very difficult. It would be a challenge to do an evasive maneuver if you pulled out into traffic at the wrong...
Update - i pulled the motor yesterday and it's a broken motor shaft. Very interesting considering the noises coming from the system when power is on vs. power off.
Here is a video of the noises coming from the EPS unit. engine off and engine running.
Only concerning noise I hear engine off is what sounds like a bearing squeal. The more consistent gravely noise I’m fairly certain is the freewheeling recirculating ballnut.
Engine on there is the squeal...
Hi all - long story short, my wife got the Service Power Steering message while at work yesterday and lost assist while backing out of a parking spot (2011 Yukon Hybrid with 130k miles). Multiple ignition cycles since leaving home that morning and it failed at lunch time. She thinks it failed...
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