Another pump bites the dust

Josh154

Well-known member
Sep 28, 2015
1,220
85
48
Sioux Falls SD
I have probably had my truck as low as 6700-6800. I was at 7100 with my 20's and toyos, sub and hitch plus me. Pyos cut a good 100lbs on all 4 corners, sub and hitch are a good 100 and I'm at 200. Everyone thinks lmms are so heavy because of the bigger body
 

oscyjack

New member
May 7, 2016
775
0
0
Northeast
lolol. He definitely seems to be hard on it. So too am I so It's nice learning what works and doesn't. let us know how you like that PSC pump
 

oscyjack

New member
May 7, 2016
775
0
0
Northeast
Hahaha, could be. Not a competition for idiocy but I tend to be over harsh on all of my equipment, which is why I am so anal about maintaining everything. I have been gentle on my truck since i got it in march in comparison to some other vehicles i've owned, only cuz I wanted to understand it's operations more before I had to fix them haha. I dont sled pull or race a circuit, but the trucks driver definitely treats it more like a GTI than a suburban if you catch my drift.
 

oscyjack

New member
May 7, 2016
775
0
0
Northeast
Get it, drift pun? My best to date was still the girlfriend comment.

"honey why do you spend all your time on your truck and not with me"
"when you start making jet noises and can throw me back into the seat for 10 seconds at a time, we'll talk" haha
 

oscyjack

New member
May 7, 2016
775
0
0
Northeast
good point. i hope i don't need 3 pumps in short miles haha. Seriously interested in hearing about the psc pump though.
 

WVRigrat05

Wound for sound
Jan 1, 2011
3,081
4
38
36
French Creek, West Virginia
I don't think I'm very hard on this one, I run a smaller tune, let it warm up and cool down, and drive slow on dirt roads, I mean, it gets the occasional wfo runs but nothing any worse than anyone else, maybe a little more often than others.

Hell I don't know, I'm comparing how I treat this truck to trucks I've ran harder than most people do a chainsaw or fourwheeler.

Pumps been good last two days, it's weak on the low end but not just not working like it did the other day.

I'll keep you posted on the psc pump.

And no flames have been out of this exhaust, I don't have the balls nor do I have the fuel, now the LLY on the other hand, I don't know how it took it, I wonder if it's still alive?
 

WVRigrat05

Wound for sound
Jan 1, 2011
3,081
4
38
36
French Creek, West Virginia
There's a difference between being hard on it and being abusive.

I literally chased at fourwheeler 1 1/2 miles on a one lane road, I was in and out of the throttle a good bit but not to the floor, can't keep it on the road in turns at the floor with fuel shifting in the bed.

I don't abuse this truck, I am hard on it at times but I don't go on drunken rampages or just bash the **** out of it. I do live in the country with A LOT of turns to get to and from home, could why it's going bad already.

I burnt the first pump up pulling my camper, did the same thing on the LLY, and the second one blew a return line and then snapped the shaft a year later, it was a reman, had a reman on my old truck break the same way. This one I don't know, haven't towed, haven't sit and ripped on the wheel with the truck not moving and kept fluid changed.
 

OregonDMAX

NOT IN OREGON, NO DURAMAX
Apr 28, 2013
3,964
8
38
36
Goodyear, AZ
I literally chased at fourwheeler 1 1/2 miles on a one lane road, I was in and out of the throttle a good bit but not to the floor, can't keep it on the road in turns at the floor with fuel shifting in the bed.

I don't abuse this truck, I am hard on it at times but I don't go on drunken rampages or just bash the **** out of it. I do live in the country with A LOT of turns to get to and from home, could why it's going bad already.

I burnt the first pump up pulling my camper, did the same thing on the LLY, and the second one blew a return line and then snapped the shaft a year later, it was a reman, had a reman on my old truck break the same way. This one I don't know, haven't towed, haven't sit and ripped on the wheel with the truck not moving and kept fluid changed.

Woah man I wasn't calling you out :hug: you drive your truck on service roads so it's going to be rough.
 

WVRigrat05

Wound for sound
Jan 1, 2011
3,081
4
38
36
French Creek, West Virginia
Woah man I wasn't calling you out :hug: you drive your truck on service roads so it's going to be rough.

I know, I was just trying to explain how it lives, I try to be easy on it most times but I do play a little. I haven't really worked this truck, and this is the second truck that's ate power steering parts and I don't get it.

Surely being leveled isn't doing it, I mean plenty of people with levels trucks, that just eats everything else.
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
21,667
5,813
113
Phoenix Az
You may have collapsed the pressure spring some on the pump. Reman pumps are hit or miss. I thought mine was dieing after 200k and put a reman in. Didn't change a thing. Good think I kept it :D. The internals are slapped together so wouldn't surprise me if the spring is hurt or a vane is hurt.
 

Awenta

Active member
Sep 28, 2014
4,090
2
38
CT
Curious on the PSC pump too. I might try an lml pump though.


Sent from my iPhone using Tapatalk
 

WVRigrat05

Wound for sound
Jan 1, 2011
3,081
4
38
36
French Creek, West Virginia
You may have collapsed the pressure spring some on the pump. Reman pumps are hit or miss. I thought mine was dieing after 200k and put a reman in. Didn't change a thing. Good think I kept it :D. The internals are slapped together so wouldn't surprise me if the spring is hurt or a vane is hurt.

This one is a GM pump, I learned my lesson on remans, only reason the last one was a reman was because I couldn't get a GM pump shipped before I had to go to work and I needed the truck.
 

skintback

Take this one to church
Mar 5, 2007
919
0
16
Florida
I'll tell you right now, the PSC isn't the end all pump. I've seen bad ones from day one from them and good ones that last for years on end in race cars. Hell one guy had 10 miles on his pump and the shaft cracked and spit a seal 3 miles into the rubicon trail we were running (12 hour drive and it all ended for him in a few hours. Talk about a shitty trip).

I'd love to do their pump and box at some point but I know going into it I'll be carrying a spare pump for trips

X2 I have one on my 04 reg cab duramax with stock rims 265's on it and it worked great for a couple thousand miles and started getting weak. I called up PSC and asked about it and the guy got very very offended said there is no way it's his pump it's something else going on. So i told him that i have replaced everything do to leaks the gearbox hydrobooster lines and flushed and then added his PSC pump last he didn't really care told me to take some pressure measurements but i haven't got around to it needless to say i will never buy another PSC pump
 

oscyjack

New member
May 7, 2016
775
0
0
Northeast
no dickheadedness intended, but wouldn't you expect PSC to require some sort of verification the issue is with the pump? Not saying it isn't the pump, but typically without proof manufacturers want the part back first or else they'd lose too much moolah
 

bfmine

New member
Sep 11, 2011
148
0
0
Cape cod,ma
Fwiw I've had a psc pump for about 3 years and I run 35s. It's still running fine. But I can't do any of that 1 finger turning while stopped. And the steering is still weak while stopped. Sometimes won't tie the wheels while stopped. Have to get rolling a little bit. Which can be annoying. Also have a huge power steering cooler