5 turbo fueling probs

[baby blue 5]

New poster! (less than 10 posts)

hi peeps my 5 turbo wont start, theres a good spark but no fuel getting to the carb, also noticed i cant hear the fuel pump prime when ignition is switched on. whats the best way to test the pump and what else could it be, heard fuel pump relays can be faulty? where is this located and can it be tested? cheers

[dangerous dave]

passenger side under the dash i think, looks like this

http://www.rtoc.org/boards/showthread.php?t=4723

[The new Bill J]

A 5 Turbo doesn't have a carb' :cartman:




Yep, Mr Predictable strikes again :D

[baby blue 5]

New poster! (less than 10 posts)

cheers do you no if there is any way to check thats the prob?

[dave j gtt]

get the relay out and give it a knock and turn ingnition on and off , has been woking with mine the past few weeks..

or maybe a temp quick fix ...

1- remove relay,

2 - get a 4" peice of wire equal size to the wires on relay,

3 - attach a male 5mm spade connection on each end

4 - bridge white and red wires i think :scratch:

5 - remember to disconect when you done as your batterey will go flat :p

:scratch:

[James5]

You be correct re and White will give a perm live feed to fuel pump if you do yellow and White it is ignition live when key turned

[dave j gtt]

You be correct red and White will give a perm live feed to fuel pump if you do yellow and White it is ignition live when key turned


nice 1 james

[Nick k]

New poster! (less than 10 posts)

hi peeps my 5 turbo wont start, theres a good spark but no fuel getting to the carb, also noticed i cant hear the fuel pump prime when ignition is switched on. whats the best way to test the pump and what else could it be, heard fuel pump relays can be faulty? where is this located and can it be tested? cheers

5's don't prime with ignition on, thats more with fuel injection cars, the pump will start to run when you crank the engine over :agree:

[baby blue 5]

New poster! (less than 10 posts)




hi can someone tell me the location of the relay? is it among the 4 that are next to the fuses? think i have found it but need to check, its a 6 prong one and is an off white colour

has 12v ref.02335 and 456
321


undernaethe the ref bit, cheers

[baby blue 5]

New poster! (less than 10 posts)

well changed the relay of what i think is the correct relay for the fuel pump with a 2nd hand one from a scrapper and it still wouldnt start, ran a 12v from the battery to pump and it will now start up and run, not really sure where to go now but the problem is obviously lack of electric to the pump, any ideas would be helpful cheers

[dave r5]

Think uve changed the wrong 1
its blak with an off white base.
The relay itself is cliped next to the fuse box rather than plug into the fuse box

[tiff_lee]

New poster! (less than 10 posts)

well changed the relay of what i think is the correct relay for the fuel pump with a 2nd hand one from a scrapper and it still wouldnt start, ran a 12v from the battery to pump and it will now start up and run, not really sure where to go now but the problem is obviously lack of electric to the pump, any ideas would be helpful cheers
You found a 5 GT at the scrappy with the fuel pump relay still!?

[baby blue 5]

New poster! (less than 10 posts)


You found a 5 GT at the scrappy with the fuel pump relay still!?


possibly not, can anyone confirm the exact location and what the relay is like, plus how many prongs etc?? looking at my fuse box the fuses are too the left and there is a group of four relays together one is a buzzer which i presume is for the lights the big one i replaced was the left hadn top one of the four and was the largest relay there, it was about an 1" square and 2" long??

[tiff_lee]

Did you look at the thread Dave linked to, there are pictures and details of the relay there.

[baby blue 5]

New poster! (less than 10 posts)


passenger side under the dash i think, looks like this

http://www.rtoc.org/boards/showthread.php?t=4723


actually looking at this pic http://old.rtoc.org/articles/i/autofolder/SPMWKOVHQLSIWGFKCESG.jpg

from the quoted link i'm guessing it is mounted on its own somewhere?

[baby blue 5]

Did you look at the thread Dave linked to, there are pictures and details of the relay there.


yes but it does not give the location of the relay, the only relays i can find is the group of 4 i have already mentioned

[dave r5]

Its seperate from the fuse box tucked up quite high, has long and thick wires 6 i think. It shud have a metal clip that holds it to the fuse box dusnt plug into it!
Reach high to the right

[James5]

Its seperate from the fuse box tucked up quite high, has long and thick wires 6 i think. It shud have a metal clip that holds it to the fuse box dusnt plug into it!
Reach high to the right


:agree: put your hand up behind the fuse box and you will find it

[baby blue 5]

:agree: put your hand up behind the fuse box and you will find it

behind as in above or behind where all the wires are?

[dave r5]

Put pasanger seat at fuly reclined position. Get in upside down. With a torch. Head under the fusebox. Asuming u have removed the big cover. Look up center consol side. And fish for it. If it stil has original clip it wil b a ****a to get too. Its the only 1 there if i recal

[baby blue 5]

will have a look in mourn, cheers!

[dave r5]

did u find it ?

[baby blue 5]

yes i did, changed it with one from a scrapper but it still wont start, ran a wire from bat to fuel pump and it starts ans runs, remove wire from bat and it contiues to run for 2-3mins then cuts out and wont start again unless i put the wire on pump back on to battery???

[tiff_lee]

yes i did, changed it with one from a scrapper but it still wont start, ran a wire from bat to fuel pump and it starts ans runs, remove wire from bat and it contiues to run for 2-3mins then cuts out and wont start again unless i put the wire on pump back on to battery???
because the carb fuel bowl is empty....

[Markey Mark (BD)]

yes i did, changed it with one from a scrapper but it still wont start, ran a wire from bat to fuel pump and it starts ans runs, remove wire from bat and it contiues to run for 2-3mins then cuts out and wont start again unless i put the wire on pump back on to battery???

If you can mate take a pic of the relay you changed, just want to make sure you changed the right one.

If it is and its ok, poss that the wiring down to the pump has a break in it.

[tiff_lee]

opps my bad, did you mean the car starts and runs or the fuel pump?

[baby blue 5]

havent got a pic but is identical to the one posted in the link, which wire goes from relay to pump? if i bridge the white and yellow wire for ignition live it should run then shouldnt it unless there is a break in the live wire to pump as mentioned

[Markey Mark (BD)]

havent got a pic but is identical to the one posted in the link, which wire goes from relay to pump? if i bridge the white and yellow wire for ignition live it should run then shouldnt it unless there is a break in the live wire to pump as mentioned

Bridge the thick red and white wires, one will be top left and other bottom right (or other way round). If you do that pump will run with ignition off, try that just to see if the wiring is ok.

[baby blue 5]

il grab a torch...........

[baby blue 5]

nowt!!! :cry:

[Markey Mark (BD)]

Right so sounds like a problem with the wiring then.

Under the right hand side kick panel is the plug that connects the dash loom to the loom that goes to the back of the car, check that.
Also the plug under the car next to the pump, is that ok.

Check if voltage is getting to these connections and it'll give you an idea where the break is

Also one other thing, is voltage going to the relay?

[baby blue 5]

what am i checking in right hand side kick panel? just that the looms plugged in? il check voltage to relay, will need to be the big red wire i guess?

[Markey Mark (BD)]

what am i checking in right hand side kick panel? just that the looms plugged in? il check voltage to relay, will need to be the big red wire i guess?

You need to unplug the loom mate and find the wire that feeds the fuel pump, i can't remember what colour it is though will come to me in abit.

Yeah check voltage at the big red wire mate.

[baby blue 5]

healthy 12v at the red wire and at the yellow wire with the ignition on

[Markey Mark (BD)]

healthy 12v at the red wire and at the yellow wire with the ignition on

Ok you need to start checking for voltage further down the wire going to the fuel pump, is goes through the connecters i mentioned earlier

[baby blue 5]

will i need to check it in the r/h side kick panel? apart from the connector next to the fuel pump what else do i need to check, cheers!

[Markey Mark (BD)]

will i need to check it in the r/h side kick panel? apart from the connector next to the fuel pump what else do i need to check, cheers!

Thats it mate:agree: You looking for where it loose's the voltage.

Easiest thing to do is start at the pump and work your way to the realy. Just next to the pump is a plug id' start there first then move on to the connector in the kick well. These are the only 2 connectors that the pump feed wire runs through

Just thinking of it i think its a green wire from the pump so follow that one back

[baby blue 5]

there isnt a green wire going to the relay tho is there?:scratch:

[Markey Mark (BD)]

there isnt a green wire going to the relay tho is there?:scratch:

I think it changes on the connector in the kick panel, next time your at the car look at the colour of the wires going to the pump sure one is green. Just need to follow that back and check for voltage and different points to see where the break is.

[baby blue 5]

yea one is green other green and black i think, workig from the pump do you know the route the cable goes ie to the relay then kick panel connector?? cheers

[Markey Mark (BD)]

yea one is green other green and black i think, workig from the pump do you know the route the cable goes ie to the relay then kick panel connector?? cheers

Pump then through little connector under car, then through floor and along the seal the through connector in kick panel, then off to relay which the wire is routed through the dash loom

[baby blue 5]

great hope its not shot behind dash :eek:

[Markey Mark (BD)]

great hope its not shot behind dash :eek:

I doubt it mate, prob bad connection somewhere.