no fuel pump....AGAIN...and again..AGAIN
10-04-2008, 05:03 PM
#1
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no fuel pump....AGAIN...and again..AGAIN
the car broke down the other week coming back from "the scotch corner meet".............no power at the pump...........the car/pump had been rewired to a relay in the boot.....after a bit pissing about decided that was the problem and changed it from a 30a to a 70a...........and the cars been fine every sinse...(2 weeks)............well its just done the cunt again.....the fuel pump dies...............waited about 45mins for it to start again........drove about 5 mile and it died again...................HEADS DONE IN WITH THIS CAR................i know if i take to an electricians the problem wont happen....................
............
............
Last edited by pete mcrash; 21-05-2008 at 06:12 PM.
10-04-2008, 05:13 PM
#4
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I had this on a car a while ago. Turned out to be the poxy Clifford alarm that was fitted cutting the feed to the pump for no reason when i driving along. I bypassed it and it was fine after that. If you,ve got an all singing all dancing alarm i,d check that.
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10-04-2008, 05:20 PM
#8
well. if when the pump was rewired, the earth wasnt renewed aswell, the earth may well have high resistance, this can cause the relay to overheat and fail....when the relay cools down it works again...
so if it hasnt been done...renew the earth, and earth it to the body somewhere clean...i did mine under the back seat,
so if it hasnt been done...renew the earth, and earth it to the body somewhere clean...i did mine under the back seat,
Last edited by JTECH James; 10-04-2008 at 05:23 PM.
10-04-2008, 05:22 PM
#9
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so you have used a live from the battery fused near the battery running through a relay (triggered on and off by the OE fuel pump wiring) and a new earth cable to the pump same AWG as the live to the pump.........
is all the above correct ?
is all the above correct ?
10-04-2008, 05:25 PM
#10
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i get u................old n new etc...........but the pump was rewired 2 year ago.....but i suppose corrosion takes time....something else to put on the list.............
10-04-2008, 05:29 PM
#14
so you really need to change the relay, as its probably melted internally....check all the relay connections as these can get hot and melt aswell....
and re earth the pump.
the relay shouldnt get hot, so when you run the car you can check it stays cold.
and re earth the pump.
the relay shouldnt get hot, so when you run the car you can check it stays cold.
as JT says it could be overheating due to high resistance in that case
10-04-2008, 05:36 PM
#17
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This is when i did mine a few years back 
https://passionford.com/forum/restorations-rebuilds-and-projects/101959-mini-fuel-type-project-thing-on-the-3dr.html
https://passionford.com/forum/restorations-rebuilds-and-projects/101959-mini-fuel-type-project-thing-on-the-3dr.html
10-04-2008, 05:37 PM
#18
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...........one more thing...............i left all the original wirering inplace............should this be removed or kept inplace
10-04-2008, 05:40 PM
#19
it doesnt matter if its in place, all you need to do is disconnect whats not being used.
as you know the standard power feed is triggering your relay, so that has to stay in place....
the earth can be left in place, just disconect it from the pump, run a wire from the pump straight to the body, using the same size cable you used for the new power feed, making sure any connectors are soldered on.
as you know the standard power feed is triggering your relay, so that has to stay in place....
the earth can be left in place, just disconect it from the pump, run a wire from the pump straight to the body, using the same size cable you used for the new power feed, making sure any connectors are soldered on.
Last edited by JTECH James; 10-04-2008 at 05:41 PM.
10-04-2008, 07:09 PM
#21
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.......right sound....the new earth is getting done 2morrow/satdy.....and the cars going to the local (good rep) cliffiord dealer to get the alarm serviced and checked out...................once again thanks for ur help.........
10-04-2008, 07:20 PM
#22
18-04-2008, 05:54 PM
#23
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hopefully sorted....................it was the alarm................immobiliser to the fuel pump wires were fooked........fingers xxx'd
19-04-2008, 06:34 AM
#24
"good" old cliffys eh!!
I cannot beleive that sparky did not at least strongly advise a decent earth wire needed to be done as well.
I use a 40amp relay mounted just behind the rear seat as there is a little hole already there so I used it to hold relay holder, I even have a short length of wire with a spade on each end in case relay packs up(never yet) so I can simply put this wire in place to run direct, ie all the time.
I ran my ground direct from battery with 28/030(17.5A) but used thinwall for the live of 32/020(16.5A), as I had run out of that colour in non thinwall.
Do NOT solder anywhere that is subject to vibration, as the flux(ACID) used in the solder WEAKENS the connection right at the point where the solder finishes, that is why looms are normally(properly) crimped.
There is NO point doing a reconnection on a boot floor subject to water/corrosion etc.
tabetha
I cannot beleive that sparky did not at least strongly advise a decent earth wire needed to be done as well.
I use a 40amp relay mounted just behind the rear seat as there is a little hole already there so I used it to hold relay holder, I even have a short length of wire with a spade on each end in case relay packs up(never yet) so I can simply put this wire in place to run direct, ie all the time.
I ran my ground direct from battery with 28/030(17.5A) but used thinwall for the live of 32/020(16.5A), as I had run out of that colour in non thinwall.
Do NOT solder anywhere that is subject to vibration, as the flux(ACID) used in the solder WEAKENS the connection right at the point where the solder finishes, that is why looms are normally(properly) crimped.
There is NO point doing a reconnection on a boot floor subject to water/corrosion etc.
tabetha
19-04-2008, 03:54 PM
#25
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tabz................if ur on about the fuel pump re-wirering....it WAS re-earthed aswell....they've been checked and are fine....the (new) earth comes in the boot through the fuel cut off thingy and is screwed onto the back panel.....
25-04-2008, 09:46 AM
#26
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well it wasn't the fucking alarm system.............cos its done it again.........CUNT........this fucking car is the devils love juice...............sick as fuck....its got power so i'm going to change the pump.......(thought pumps just stopped working when fucked.....)
25-04-2008, 10:23 AM
#27
Pete if you've got a Clifford alarm I can almost garantee it being that.
I had a load of problems with mine, got it sent off checked over, serviced the lot
Decided to change the alarm and never once had another problem with it.
Get yourself a new alarm mate, Clifford's are shit!
I had a load of problems with mine, got it sent off checked over, serviced the lot
Decided to change the alarm and never once had another problem with it.
Get yourself a new alarm mate, Clifford's are shit!
