When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I was at ICAR ( Mirabel, Qc, Canada) this past Monday running laps with windows closed and the AC on ( I know, dumb - outside temp was ~30C ). After ~ 5 laps, I felt something strange with the wheel - it felt heavier, and I could really feel the road. Looking down at the dash, I see that my oil temp is just under the red line, and the warning:
"Power steering disabled. Please drive carefully"
After a cool down lap the power steering came back. I had the windows down and heat on for later runs, and oil temp was fine ( middle of the gauge) for the rest of the evening. So two questions:
1 - Does this happen because the power steering fluid got to hot ? There was no warning to that effect
2 - Is there a way to disable power steering legitimately. I really liked the feedback I got from the wheel on the track.
C7 uses an electric steering rack, so no power steering fluid.
Perhaps electric motor was overheating and Max current was limited? If set at Track it has less boost. Assume since tracking that is wher the OP had it set.
Your engine should have gone into a limp mode as well which is probably what happened. It happened several times at the Ron Fellows school I attended in 110 degree temps. These cars just don't get enough air in them sometimes to keep cool. Incidentally, you are supposed to check your gauges every time you get on a straight when tracking or racing.
From: When all is said and done... there is a hell of a lot more said than done. Riverside,Texas
St. Jude Donor '05 thru '26
Originally Posted by JerryU
Perhaps electric motor was overheating and Max current was limited? If set at Track it has less boost. Assume since tracking that is wher the OP had it set.
From: Syracuse-Central Square New York Winer of the all Corvette race WGI 8/23!
This is what we did to hopefully take care of the steering issue. Its been done before by someone else on here. This opening will force fresh air from under the car directly onto the electric actuator.
I used to work on that system before going over to Ford (I was at the supplier).
You had one of the MANY reduction mechanisms kick in. The EPS will reduce and then disable assist (well set assist to 0%) if you "abuse" the gear.
Things that will cause this (normally):
Low Voltage (below 9 volts)
High Voltage (over 18 volts, could even be 16)
Over Temperature (ECU reaches 100 C, or Power Stage MOSFETS read 130 C)
Over Current (draw more than 90 A for a specific amount of time)
Perhaps electric motor was overheating and Max current was limited? If set at Track it has less boost. Assume since tracking that is wher the OP had it set.
Power steering ...
