Quantum Fuel 255lph pump problems
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Junior User
Joined: Jan 2016
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[QUOTE=EllieMae94;19988434]
I think mine started from day 1. I just didn't notice it until I switched tanks.
Well I'm going to prove it to them by hooking them up directly to the gauge and take a pic. Might just go for a refund instead. No way I'm f'ing around some more. I will probably do stock rear and Tre front without FDM. Who knows maybe it' because i left part of the old pump wiring in place.[/QUOTE
Hope your luck is better than mine. I forgot to add in my last post the Quantum pump worked great for 2 or 3 days. Then the low pressure problems started...
Hope your luck is better than mine. I forgot to add in my last post the Quantum pump worked great for 2 or 3 days. Then the low pressure problems started...
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Junior User
Joined: Jan 2016
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Put the old stockers back in at the rear, and got a total of 32psi!, and no change when I pull vacuum to the regulator. Jesus christ.I would've tested pressure at the pump but I couldn't get the supply line off. seems the fuel line removal tool only fit the return. I have 2 sets of tools and none of them fit right. Next will be to put the Tre pumps in and see if I get over 40psi.
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Junior User
Joined: Jan 2016
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I did yes. I think the pump is tired, it's about 7 years old and it is Spectre i think. I have yet to measure it at the pump, but I'm sure it's the pump. I do get over a hundred psi with the 255lph Tre pump though, so lets see how that goes tomorrow.
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Junior User
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Well stockers only a bit better with the front installed. I guess it's due for replacement. Getting normal readings with the Tre pumps. I wonder if anyone has been successful fitting the 255lph into the stock module. I guess I would have to break the connector housing. Will try it out.
Mountain Pass
Joined: Sep 2020
Posts: 249
Likes: 19
From: Mid Michigan
GNR22 put Aeromotive 340LPH in the stock housing. Post #12 in the link. I tried the Walbro GSS340 255LPH and its to long to fit in the stock housing.
https://www.ford-trucks.com/forums/1...uel-pumps.html
https://www.ford-trucks.com/forums/1...uel-pumps.html
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Junior User
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GNR22 put Aeromotive 340LPH in the stock housing. Post #12 in the link. I tried the Walbro GSS340 255LPH and its to long to fit in the housing.
https://www.ford-trucks.com/forums/1...uel-pumps.html
https://www.ford-trucks.com/forums/1...uel-pumps.html
Thread Starter
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Junior User
Joined: Jan 2016
Posts: 91
Likes: 6
GNR22 put Aeromotive 340LPH in the stock housing. Post #12 in the link. I tried the Walbro GSS340 255LPH and its to long to fit in the stock housing.
https://www.ford-trucks.com/forums/1...uel-pumps.html
https://www.ford-trucks.com/forums/1...uel-pumps.html
Originally Posted by Zrt1200 View Post
Will those Aeromotive pumps slide right into the stock pump plastic housing with no mods??
I'd have to pull the pump back out of the tank to refresh my memory. But without doing that, I think that I removed the entire plastic disaster and just hung the pump from the tube like the old style fuel sending units. I remember the plastic housing being a bear to remove. Almost need 4 hands to release all the little tabs.
I also found a link for the autobest high flow pump module in that thread...sounds a bit risky though.but less than half the price of the competition....
Mountain Pass
Joined: Sep 2020
Posts: 249
Likes: 19
From: Mid Michigan
Read further down:
Originally Posted by Zrt1200 View Post
Will those Aeromotive pumps slide right into the stock pump plastic housing with no mods??
I'd have to pull the pump back out of the tank to refresh my memory. But without doing that, I think that I removed the entire plastic disaster and just hung the pump from the tube like the old style fuel sending units. I remember the plastic housing being a bear to remove. Almost need 4 hands to release all the little tabs.
I also found a link for the autobest high flow pump module in that thread...sounds a bit risky though.but less than half the price of the competition....
Originally Posted by Zrt1200 View Post
Will those Aeromotive pumps slide right into the stock pump plastic housing with no mods??
I'd have to pull the pump back out of the tank to refresh my memory. But without doing that, I think that I removed the entire plastic disaster and just hung the pump from the tube like the old style fuel sending units. I remember the plastic housing being a bear to remove. Almost need 4 hands to release all the little tabs.
I also found a link for the autobest high flow pump module in that thread...sounds a bit risky though.but less than half the price of the competition....
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Junior User
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well i hung the TRE pump in the front tank with a bracket I made last time, no plastic module. I ordered a rear autobest pump module that is higher flow than stock. Let's see how that one goes. If the front works I will just use that most of the time and run the rear tank once in a while.
7th Gear
Joined: Jul 2021
Posts: 7
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I know this thread is a little old but I too have had low fuel pressure issues with 2 brand new Quantum pump modules. And they seem to know about this problem as they took them back without question. Don’t buy these POS pumps!!!!!
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Junior User
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Not sure how they sleep at night. All that wasted time just removing the bed and installing and reinstalling the pump. The cheaper pump I bought seems sufficient but had less lph, at least it wasn't defective.
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