electric fuel pump

Home / the12volt's Install Bay / General Discussion / electric fuel pump (

Topic Closed)

Welcome Guest :)

Members

< Prev Topic Next Topic >

justa

Member - Posts: 3

Joined: March 15, 2003

Location: United States

Posted: March 15, 2003 at 5:06 PM / IP Logged

i have a 87 dodge ramcharger V8 318 5.2L and the thing that pushes the fuel pump to pump gas is dull! so i bought a electric fuel pump. there are two wires (ground and hot), i know where to put the ground. the hot? i was told to hook it up to the ignition (something that powers on only when the key turns). i want to put it near the tank so heat won't vapor lock it. how do i run this wire and where do i run it to? sorry so new.

justa

auex

Platinum - Posts: 5,041

This member has made a donation to the12volt.com. Click here for more info.

Joined: December 23, 2002

Location: Arizona, United States

Posted: March 15, 2003 at 6:25 PM / IP Logged

Ok you first need to find your ignition wire(should be blue). This wire will test hot or +12V when the key is in the run position and will stay hot when the key is cranking. Then you shold solder a wire to the igntion wire and fuse it at what ever the fuel pump recommends. Then you need to get the wire out of the car, through the firewall would be best and make sure that is loomed. Then just run it to the place your are mounting your fuel pump securing it to the frame or anything that doesn't move too much and then just connect it to the fuel pump.

Certified Security Specialist

Always check info with a digital multimeter.

I promise to be good.

Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Two_Cold

Copper - Posts: 91

Joined: July 23, 2002

Location: Canada

Posted: March 15, 2003 at 6:35 PM / IP Logged

Justa

Is that truck fuel injected? Are you sure that pump will work? Have you talked to anyone about installing that type of fuel pump? Where is the existing fuel pump?

I am not sure about an '87 but most modern vehicles need a specific amount of fuel pressure. In older cars without fuel injection almost any fuel pump would work, but newer vehicles are alot less tolerant.

It is not a very good idea to just leave the broken old pump in the vehicle as it will restrict fuel flow and may cause your new pump to wear out early, or maybe not pump enough fuel.

If you are just doing a patch repair, then install it as close as possible to the existing fuel pump.

As far as the correct power source to use, you should use a relay and have the relay triggered by an ignition wire that is on when the key is turned on and stays on even when the starter is engaged.

Maybe someone here will have a wiring diagram for your truck so you can look up the correct wire color.

speedwayaudio1

Silver - Posts: 879

Joined: March 18, 2003

Location: United States

Posted: March 20, 2003 at 6:21 AM / IP Logged

it must be a carb motor to have a mech fuel pump. fix the mech pump. elect pumps have too much danger. in a roll over without a merc switch to kill the pump you will just feed the fire.

Big Dave

Search for other posts by speedwayaudio1

justa

Member - Posts: 3

Joined: March 15, 2003

Location: United States

Posted: March 21, 2003 at 3:54 PM / IP Logged

speedway your right but the new mech fuel pump i put in it doesn't work either. that rod that pumps it is dull so instead of breaking the Water Pump, Timing Chain, and all the stuff thats in front of it down i went with the Elec Pump. Auex your directions were very clear and simple but i'm a baby at this stuff, so i decided to do this. let me know what u think.

mount the Elec fuel pump. wire it to a switch which is connected to the (+) battery. (oh yeah and connect it through an in-line fuse.) its kinda like a kill switch. BAD PART. if i forget to turn that switch off it'll keep pumpin. so i got a switch with a blinking L.E.D. now i don't what i should wire to the LED part. what do u all think?

Sorry, you can NOT post a reply.
This topic is closed.

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

electric fuel pump

Sorry, you can NOT post a reply.This topic is closed.

Sorry, you can NOT post a reply.
This topic is closed.