I cannot locate the power steering reservoir in 2007 Buick LaCrosse CXL Sedan. I hear this whine, everyone tries to tell me it's normal, but it sounds like power steering. I can't locate it and the manual isn't for the 3.8 V6 engine. This concerns me because I get my oil changed about every 6 wks and they say it's filled, but I constantly hear this whining

Hello takinitlite,

The power steering pump is on the right-side(passenger side)of the engine compartment between the engine and firewall.

See image below circled in red.



I hope this helps.

Regards,

Jerry

The whine people hear is because it's torque converter vane ends aren't fully covered. Your dipstick will read, but if you add 1 fluid oz and remove it your dipstick will still read full. I add a little at a time and check the dipstick each time, I'm not overdoing it. It takes 2 or 3 tries to get it right depending on the reason for low level in the first place. For me that is driving the car in 1st gear straight down a mountain (it burns) or having it back flushed and filled.