I am not a GM man but let me see if I can help until a Bow Tie Guy comes on...
Quote:
It's not smooth any more, when i make a turn i can feel the engine idle through the steering wheel.
I also noticed the steering wheel doesn't retuurn anymore.
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Sounds like you got a bad pump. It can only be ascertained with a pressure gauge but you might want to try another pump.
As for the alignment of the pump, GM uses a very complicated mounting system for some reason on their FEAD's. I know my son-in-law's 86 305 IROC is a pain. There are many brackets and spacers. One left off will throw out the alignment. You might want to try and find an illustration of the assembly in a shop manual or parts explosion to see if you have it mounted correctly.
As for fluid, the manufacturer)s) are very specific as to which type to use, whether TYPE F or DEXRON because of the friction modifiers used. Check a lubrication manual to see what your system requires.
As for the bleeding operation, when it states stop to stop, do not turn the wheel fully against the stop as this agitates the fluid. Sometimes you may have to let the car sit for awhile and check the reservoir to see if the fluid is aerated. If so, there is a special procedure to draw the air out.