Electric fuel pump?
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Freshman User
Joined: Jun 2004
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Electric fuel pump?
It appears to be that the mechanical pump has quit on my 94.5 PS. Hearing the horror stories on the big nut behnd/under the turbo makes me dread doing the job. Could I just put an inline electric pump in its place? I know to leave the old pump in the block and to put the electric somewhere away from the heat. Maybe under the truck protected by the framerail? I've done this on several cars/trucks over the years and even on an old tractor. Any reason this wouldn't work?
Posting Guru
Joined: Mar 2008
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From: Billerica, MA
Ya your thinking of the cali trucks. Your truck just has a regular fuel pump which isn't to bad at all. Just remove the y-pipe and loosen up the bowl to be able to un hook the lines and then the banjo bolt can be gotten at. I used a Duracraft wrench and it was bent perfectly.
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From: Ft Scott
Yes you could use an electric pump instead of the mechanical one but it's not as easy as it would be on a gasser. The stock mechanical pump is a two stage pump that draws fuel from the tank, thru the filter and then back to the pump where the pressure is bumped up to 50-60 psi before it goes to the injectors via the fuel rails. If you were to use a holley red or blue pump they dont have enough pressure to supply the injectors and if you use superduty or aeromotive pump they have to much pressure to go thru the stock fuel bowl, you would have to use some type of inline filter that will handle 60 psi. Also you'll need a pressure regulator because once you remove the stock filters you also loose the stock pressure regulator. Electric fuel system can and have been done on these trucks but it not as simple as just adding the pump.
Senior User
Joined: Mar 2007
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From: Lebanon MO
could you buy a FASS style system and install it? ni wouldnt want to buy the kit but make it my self you can buy all of the parts online. but is there any headaches? i know it would be nioce to get rid of the fuel bowl in the valley. in this case would you just tie in post stock fuel pump??
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Logistics Pro
Joined: Jul 2001
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From: Marble Falls, Texas
This is a subject that I like to read about, ALOT. And every time I read a post of someone who built their own system, they all say the same thing. "I wish I would have just bought the kit." Just an observation. But for the hard core, you can absolutely build your own fuel system. But it's gonna take lots of time, money and homework.
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From: Ft Scott
could you buy a FASS style system and install it? ni wouldnt want to buy the kit but make it my self you can buy all of the parts online. but is there any headaches? i know it would be nioce to get rid of the fuel bowl in the valley. in this case would you just tie in post stock fuel pump??
Because our stock mechanical pumps are two stage pumps there are no electric pumps that are a direct replacement. Stage 1 is a diaphragm pump that draws fuel from the tank and into the fuel filter bowl at low pressure. Stage 2 is a piston pump that draws fuel from the filter and delivers it to the injectors at high pressure.
Senior User
Joined: Sep 2008
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From: Huntsville, Tx
I just replaced my fuel pump last week on my 97, it was no where near as hard as i have read. took me 2 and a half hours to do cause i needed to go back to the parts store for the right fuel line. the hardest part was hooking up the fuel line at the bottom of the fuel bowl, other than that it's not overly hard to do.
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