NipRing Posted May 22, 2015 Report Share Posted May 22, 2015 Ok, so last winter I heard my PS pump groan a few times. My truck has 150k on it. So when I was doing the top end of the motor a month ago, at the last minute I decided to swap out the pump. I got one from Autozone. I know guys have said they have had bad luck with non-GM pumps...and I should have listened. It's been a month and this pump has shit out in me. Trying to turn the wheel under 1500 rpms...forget it. Now this autozone pump looked exactly like mine except it had a second low pressure return on the backside. Which I assumed was for hydroboost (which is something I plan on upgrading to in the future anyway, so I thought it was a bonus) and I just capped it. So, I did some digging and I thought I came up with the updated pump part number, 15909826. I was assuming from what I read, this was the new version of what I already had. Ordered it off eBay. It doesn't look right. And before I go through the trouble of pulling it all apart just to put this bad one back in. Can anyone tell me, is there a PS pump, that is intended for hydroboost, that will work in my truck right now? I need a part number. GMs part numbering sometimes makes my head spin. Thanks Quote Link to comment Share on other sites More sharing options...
whytry85 Posted May 22, 2015 Report Share Posted May 22, 2015 give me a sec ill have one for ya. by vin on my truck, 20756710 is the newest part number for pump assembly. Quote Link to comment Share on other sites More sharing options...
NipRing Posted May 22, 2015 Author Report Share Posted May 22, 2015 So 15909826 has what looks like one more low pressure return (assuming for hydroboost, which I want in the future). I'm wondering if can cap that for now and use this pump. Quote Link to comment Share on other sites More sharing options...
whytry85 Posted May 22, 2015 Report Share Posted May 22, 2015 (edited) yeh, looks like the 15909826 fits 1500hd 6.0 and is for a hydroboost. as far as running it with the capped return, im not 100% sure. I wouldn't think it would hurt anything being that the return will just feed back into the main reservoir on the pump... id try it, if that makes you feel better. ha! Edited May 22, 2015 by whytry85 (see edit history) Quote Link to comment Share on other sites More sharing options...
NipRing Posted May 22, 2015 Author Report Share Posted May 22, 2015 I'm gonna. What the hell, right? Quote Link to comment Share on other sites More sharing options...
whytry85 Posted May 22, 2015 Report Share Posted May 22, 2015 might as well!! let us know how if goes! you can be the guinea pig!!!! Quote Link to comment Share on other sites More sharing options...
NipRing Posted May 24, 2015 Author Report Share Posted May 24, 2015 I can confirm the pump i purchased works 100%. Quote Link to comment Share on other sites More sharing options...
whytry85 Posted May 25, 2015 Report Share Posted May 25, 2015 Good deal man! Quote Link to comment Share on other sites More sharing options...
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