Huh? I didn't know we did ZEN here.

 

how many people have a 2 thousand dollar tool box but only learn to use the hammer, screw driver and pliers?

 

7!!!! I counted. :)

 

good answer - perfection is limited to your measuring device

 

No DTC's - have any HHR owners noticed their steering wheel move when car is started and move the same but in opposite direction when car is turned off?

 

You mean like when the steering sensor on the rack and pinion is going bad?(hint,hint)
No problems here.

Actually, I don't know where that thing is but give this link a read.
http://www.dormanguide.com/steering-...on-sensor.html
I know it doesn't say HHR, but gives you the basic idea.

 

OK, now I remember.....

You joined up in June after your parked HHR was hit by another vehicle in the front wheel while the wheels were turned. You had the front end components checked for damage....inner & outer tie rods, rack, rack mounts etc.

Two clueless dealers started talking about pumps, hoses, etc. Then you found something on the web about calibrating the steering with a paperclip....a paperclip?

Here's what GM has to say...

"The steering wheel position sensor determines the "on center" position. This is used to keep return assist from going over center once a turn is completed. The unit is 5 volt dual analog triangle signal device with a valid signal voltage range of 0 to 5 volts. The sensors signal 1 and signal 2 voltage values will increase and decrease within 2.5 to 2.8 volts of each other as the steering wheel is turned. This information can be very useful during diagnosis.

In GM EPS systems, the Power Steering Control Module (PSCM) must be set up with the correct "steering tuning", which are different in relation to the vehicles Powertrain configuration, sedan, coupe, tire and wheel size, etc."

So it sounds like the collision may have damaged the position sensor or knocked the EPS system out of calibration, this needs to be checked using a Tech II in the hands of a properly trained diagnostic technician. It's not a DIY procedure in my opinion, check with a good local suspension or collision repair shop.

Correct me if I'm wrong, but wasn't the vehicle hit by your friend, if so their insurance should pick up the tab for the diagnostics and repairs which will be expensive.

 

Oh yeah. That person.
I believe I bowed out from that other thread. I think I'll do the same thing again.
Like I said before. "What do I know?"

 

thank you for your posts, the links have been a valuable learning process so I can say it is a torque sensor problem but it is not part of the rack&pinion and the Dorman 905-513 was a NO on check your fit. A hot rod joke some people might enjoy - What is the difference between torque and horsepower? - Answer - nothing at 5250 rpm.