Electric pump
Logistics Pro
Joined: Jun 2017
Posts: 3,978
Likes: 514
From: Edmond, OK
When I bought my truck it had an electric fuel pump wired to switched 12V. It was held onto the frame near the location of the mechanical lift pump with 1 sheet metal screw. 
I ditched that setup on day 1. An electric fuel pump should be mounted as close to the fuel tank as possible. Between the fuel tank select switch and water separator on our trucks. They push fuel, not pull it. Here's a good fuel pump design that you can get anywhere (Jegs, Summit, Amazon, NAPA, etc.):
https://www.summitracing.com/parts/sum-g3147/overview/
I've heard of guys installing this type of manual pump between the mechanical lift pump and the fuel filter. It would be handy if you ran out of fuel or changed the fuel filter and forgot to put fuel in it.
Really, there's no need for an electric fuel pump if your lines and hoses are in good condition. We all understand the MAWs though.
I ditched that setup on day 1. An electric fuel pump should be mounted as close to the fuel tank as possible. Between the fuel tank select switch and water separator on our trucks. They push fuel, not pull it. Here's a good fuel pump design that you can get anywhere (Jegs, Summit, Amazon, NAPA, etc.):
https://www.summitracing.com/parts/sum-g3147/overview/
I've heard of guys installing this type of manual pump between the mechanical lift pump and the fuel filter. It would be handy if you ran out of fuel or changed the fuel filter and forgot to put fuel in it.
Really, there's no need for an electric fuel pump if your lines and hoses are in good condition. We all understand the MAWs though.
Last edited by Olds64; Apr 30, 2018 at 02:28 PM. Reason: DOH!
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Tuned
Joined: Apr 2018
Posts: 281
Likes: 1
One screw is a major hazard I have a leak I plan on fixing it in May I've only found one leak so far not sure how the lines and hoses look I'm just thinking this can help just in case it has more leaks I can't get to this year for $40 I might just do it tho you have helped me a lot thank you and I apologize for the short reply
Logistics Pro
Joined: Jun 2017
Posts: 3,978
Likes: 514
From: Edmond, OK
You mentioned your system currently has a leak. Where is it? Were you able to fix it?
If fuel is leaking then there's a chance you're getting air intrusion which will effect your driveability. Our Bullnose trucks are notrious for leaking at the water separator. Here's what I used to replace my stock water separator:
Another place to look for air intrusion is at the hoses between the fuel sending units and fuel tank select switch. If those haven't been serviced then they're undoubtedley dry rotted, Your mechanical pump probably draws air right through the wall of the hose.
Anyways, I feel like a salesman. Good luck with your truck.
If fuel is leaking then there's a chance you're getting air intrusion which will effect your driveability. Our Bullnose trucks are notrious for leaking at the water separator. Here's what I used to replace my stock water separator:
Another place to look for air intrusion is at the hoses between the fuel sending units and fuel tank select switch. If those haven't been serviced then they're undoubtedley dry rotted, Your mechanical pump probably draws air right through the wall of the hose.
Anyways, I feel like a salesman. Good luck with your truck.
i ain't rite
Joined: Mar 2005
Posts: 65,564
Likes: 5,600
From: Marlboro Mental Hospital.
i never had any luck with those in line e-pumps, they never lasted more than a month or so, even with limited use. . i now only use a facet duralift pump.
the duralift in my 88 has been in it for 11 years now.
the duralift in my 88 has been in it for 11 years now.
Cargo Master
Joined: Oct 2012
Posts: 3,072
Likes: 48
From: California
I've never been able to get a low quality pump to last more than a few weeks on these beasts. The only thing that has lasted years is the Facet Duralift e-pump.
I prefer it over the lift pump. I highly recommend not using the epump as a priming pump for a failing lift pump. it will lead to lift-pump failure and possibly filling your crankcase with diesel fuel. If you go e-pump, I would recommend deletiing or bypassing the liftpump. The advantage of the epump is that you can purge the air out of the lines MUCH easier than cranking the liftpump over and over and over.
Here's were I located my epump. The previous poster is correct that it's better to put these near the tank or selector valve, to "push" instead of "pull."
I prefer it over the lift pump. I highly recommend not using the epump as a priming pump for a failing lift pump. it will lead to lift-pump failure and possibly filling your crankcase with diesel fuel. If you go e-pump, I would recommend deletiing or bypassing the liftpump. The advantage of the epump is that you can purge the air out of the lines MUCH easier than cranking the liftpump over and over and over.
Here's were I located my epump. The previous poster is correct that it's better to put these near the tank or selector valve, to "push" instead of "pull."
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Tuned
Joined: Apr 2018
Posts: 281
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Awesome thank you for the input and help sorry for the short reply it' 11:25pm here was just heading to bed when I saw the email lol
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