Do you mean the engine overheat warning? The power steering problem is most likely a defective steering rack, they always act up when hot due to internal seal leakage and fluid bypassing the seal.
Wiggle the steering wheel back and forth while trying to remove the key, if that doesn't work try tapping the lock cylinder area with a hammer handle to free up any sticking lock cylinder pins.
Spring may be broken. Try pulling the handle and at the same time pull up on the parking brake pedal. If it come up and releases, the spring is broken.
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https://www.youtube.com/watch?v=PBx2MgVy1V0
Dec 24, 2012 - Uploaded by WhoSaidTyler
I have been told they have a kit for that oil pump which consists of a spacer ring and larger oil pump .... Will ...
? 1:49
https://www.youtube.com/watch?v=gsAMtuTbE5U
Mar 6, 2012 - Uploaded by MET-TECH LLC
New main bearings, rod bearings, camshaft bearings, piston rings, head gaskets, ... oil pan gasket, oil pump ...
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https://www.youtube.com/watch?v=SGCg1KHi2NU
Oct 12, 2012 - Uploaded by seriousNoodle
It turned out to be a loose piston and unbalanced torque converter. ... Stats on Engine: 3.8L V6, GM VIN Code ...
You will really need a body manual for that specific vehicle to do type of work. You can buy it from GM. You can even buy it online from GM. // Really, if you try to guess at where the "pull" areas are (even if someone can tell you where they are), and/or what sections need a tool type puller... etc, etc, etc... you can do some serious damage to that _very_ fragile panel. It's the type of thing that can possibly be easy enough with the correct instructions and correct tools; while also being the type of thing you regret touching without such information. (In the "old days" you could have experimented on one in a junk yard, but those days are gone).
The easiest route would be to replace the pcm with a used one. The quad driver circuits are inside the unit. Somebody trained at computer repair could do it, no problem. But just buy a used one for a few bucks, transfer your mem-cal packet (memory and calibration) into it, install it and you are ready to go again.
Before you take out your old one from under the dash passenger side, be sure and take off the negative battery cable from the battery. Never unplug or plug in any connections to the pcm when the battery is on line. Damage may result.
