Thread: Bleeding a GM power steering pump

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Not sure if I read what you are doing correctly, but here is the way I would describe the breeding process. Car on the ground, pretty sure that makes no difference, how I start. Motor running turn the wheels lock too lock make sure you stop and hold some pressure when the turn limit is reach. Full left hold some pressure against the lock back off a bit repeat, then full right repeat. Go full L & R a couple of times, repeat the function described hope this is clear. That will clear the air out a whining pump you are correct usually means air.

I decided to adapt the correct Mopar pump for the rack. Two trips to the salvage to get a pump/pulley and an extra GM Alternator/Power steering mount and I spent the whole weekend adapting the Mopar pump to the GM mount. I drove the truck later that day and the GM pump had stopped whining, go figure it's been a problem for a year!

I still plan to swap the GM for the Mopar pump.