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Just went through a similar issue: https://bobistheoilguy.com/forums/threads/cant-quiet-down-a-new-ps-pump.333024/ I ended up with a brand new pump, all new lines, cooler, powerboost, and full flush. Can't hear a thing now and the Royal Purple does well in the freezing temps in OH.

That belt was definitely past it’s prime lol.. I had no idea how old my belts were - they were still in fairly decent condition but before making a cross-country trip I just replaced both of them, the tensioner (upgraded to steel pulley), and the idler. It’s cheap peace of mind and I won’t get...

Glad you got it solved! How’s the belt? If there’s any damage at all it may be worth replacing - they are cheap enough and totally worth not breaking down.

This is exactly what I just went through. No more reman pumps for me.

Yep that’s the same cap I was looking at. I saw the foam idea on Youtube and tried it before ordering the cap and it worked great. If you’re seeing bubbles it means there is air somewhere. Either trapped in the system or being let in by a leak. I drew 20” of vacuum and let it sit for 5+ minutes...

Here are comprehensive instructions I was given about how to do a proper bleed and they worked flawlessly: So, after you’ve flushed the system and are ready to bleed, try it this way: 1) Engine off. 2) Reservoir to the full mark on the dipstick, turn stop to stop 5 times, recheck fluid level...

Update: I replaced the faulty reman with a brand new ACDelco pump, all new lines, new cooler, and added a filter. I just did a new hydroboost a week ago so the entire system is new now. Did a full flush and fill with Royal Purple Max EZ. So far so good, can’t even hear it now.

I wanted to use that. I ended up using Royal Purple Max EZ synthetic. I replaced the PS pump, all the lines, cooler, and hydroboost. I did a full flush and added a filter. Hopefully I won’t have to mess with it again for a long time.

I’ve worked up there in the winter, definitely gets cold af. My travels may take me to Chicago, Wisconsin, and possibly Maine/Vermont. I’d rather spend a few bucks now and just never have to worry about having PS issues if it gets down to -30 at some point. This Royal Purple product has a -45f...

Were you in a cold climate with below freezing temps? That’s the only reason I want synthetic.

2013 Chevy Express 3500. New PS Pump, new lines, new hydroboost. Full flush, all new fluid. I want to use synthetic because I’m moving to a cold climate. Royal Purple seems to get good reviews

I always thought it was but people seem to be pretty evenly divided on this. A lot of people quote technical data on both but still disagree. I’m not putting PS/ATF in the engine, only the power steering system. I considered synthetic because it appears to do better in cold climates.

Thanks everyone for your feedback. I think I’m going to go with PSF. I just can’t find any solid scientific reason or advantage to using ATF. There are equal amounts of anecdotal pros and cons to using ATF and equal amounts of anecdotal warnings against it. That being said, I’m just going to...

It had a mix of PSF and ATF in it but it was very dirty/burnt. I’ll be doing a thorough flush and installing a filter with the new components.

I’ve always done the same, but they were older cars. This is only a 2013 but the manual calls for PSF and models just a few years newer call for ATF, so it makes me think there’s a reason why this one wants PSF.

PS pump was leaking out of every possible point. The hydroboost was leaking into the cabin. The lines are 7yrs/170k miles old. I got an ACDelco reman thinking it would be quality, turns out it was not (see my other thread). So I ordered a brand new pump and lines. I just want to do this with...

2013 Chevy Express 3500, 170k miles. I’m putting in a brand new GM power steering pump, all new lines, a filter, and I already installed the brand new GM hydroboost. There is much debate around using PSF or ATF. My GM manual says to use PSF. I bought a gallon of Napa PSF because I’m going to...

I’ve already ordered a new one. I hadn’t thought about trying to get a labor reimbursement but it’s only fair. I’ll email RA and see what they say.

Yeah I’m done with remans now. The old pump wasn’t making noise, just leaking from every possible seal. In hindsight I should have just resealed it but I already sent the core back. I have a brand new one on the way, lesson learned.

It’s frustrating dealing with this and getting junk that has a quality name on it. I really expect more from AC Delco. I did a warranty refund on it and I’m sending it back to RockAuto. Just ordered a brand new ACDelco pump and new pressure/return hoses (they’re 7 years/170k miles old). If I’m...