where does the fuel pump relay get its ground frome
Asked by dirtracer1e Sep 13, 2014 at 06:55 PM about the 2002 Kia Sedona EX
Question type: Maintenance & Repair
seems to have no ground for the fuel pump relay if I run a jumper from the battery to the relay ground the pump will run
15 Answers
Interesting. You jump from neg-- black on battery to relay? And it only then runs? Any part of the car that is steel, iron aluminum whatever will serve as ground, coming from battery is interesting and confusing at the same time. A relay is just a switch, example, the wires in the ignition switch re not big enough to carry the necessary amperage to crank the engine, so a small amount of power is sent to the relay aka solenoid to make a connection
http://www.zen22142.zen.co.uk/ronj/ronj8/cpr.gif ----open that
Doesnt matter rerun a ground wire to chassis find a bracket bolt.. ground is ground use the same size wire thats about it.
dirtracer1e answered 10 years ago
not if it finds its ground the go through a pressure switch that needs to see pressure to close inorder to make a ground like maybe a fuel pressure switch that's not working right
dirtracer1e answered 10 years ago
I can get the car to start by jumping the ground but it shuts off a few seconds like there is a pressure switch not working and I just put a new punp on it
OR an immobilizer, anti-theft. Don't know what Kia uses for immobilizer
Does the car run if jumped? Yes. Does it run normal? If yesDoes the pump shut off when ignition is open or off? If yes u have an open ground. Ground it.
dirtracer1e answered 10 years ago
car starts and does not run normal shuts off only after a few seconds fuel pump does shut off with switch went I have the ground jumper in
Ok fuel pressure regulator is switching the pump off. Fuel pressure regulator is likely the culprit. Possibly high pressure? Technical and physical testing would be required. U smell gas in the exhaust? How ever if it was high pressue u may have gas in ur oil which will thin it smell around...
dirtracer1e answered 10 years ago
do you have any idea where that switch is located I have looked all over and can't fined it
dirtracer1e answered 10 years ago
I swapped relays out with a couple that I know were good and I know the new pump is working because I took the gas line off and it pumped a good flow of gas this all started after renewing the fuel filter last week end
It may pump even thoe new,a good flo to start with,but doe,s it continue to flo,is the question.
So where did all the parts on your car come from? What state was it built in? On the window sticker it will spell what % of USA parts are on the car.