fuel pump not getting 12v feed UPDATE now popping the fuse
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fuel pump not getting 12v feed UPDATE now popping the fuse
ok as it says in the title,
basically coming home yday and the car just lost all power, tryed starting it again but was only cranking but not firing. anyways called AA this morning and he checked for spark which was ok, then sprayed easy start(i think) on the throttle body and it was starting while i was cranking the car and he was spraying.
so then he checked if the pump was getting a feed and it wasnt so he said this is my prob and he wernt sure which relay to check.
anyways so could it be the relay?? and can i test it the same way you test to see if it primes? and if its not the relay what else could it be?
and may sound stupid but does the pump always have a 12v feed when the cars running??
thanks in advance
basically coming home yday and the car just lost all power, tryed starting it again but was only cranking but not firing. anyways called AA this morning and he checked for spark which was ok, then sprayed easy start(i think) on the throttle body and it was starting while i was cranking the car and he was spraying.
so then he checked if the pump was getting a feed and it wasnt so he said this is my prob and he wernt sure which relay to check.
anyways so could it be the relay?? and can i test it the same way you test to see if it primes? and if its not the relay what else could it be?
and may sound stupid but does the pump always have a 12v feed when the cars running??
thanks in advance
Posted
Local Hero
Yes, the pump will always have a 12v feed when the engine's running - cos it needs fuel at pressure,t o run
fuel pump relays havea 5th terminal which it a trigger from the col (same feed as rev counter)
sounds like relay gone - check by bypassing the 2 big terms
fuel pump relays havea 5th terminal which it a trigger from the col (same feed as rev counter)
sounds like relay gone - check by bypassing the 2 big terms
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ok cool so if i hear it buzz it will be the relay,
wheres the best place for a relay ???
thanks
wheres the best place for a relay ???
thanks
Posted
Local Hero
buzz? wot buzz? if the fuel pump buzzue s or the relay?
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sorry i meant the pump.
and just wanted to ask why would the relay all of a shudden fail like that.
btw the pump wenrt priming for a while so has this somthing to do with that?
and just to confirm the furl pump relay is the 4th one from the left and on the top?
thanks
and just wanted to ask why would the relay all of a shudden fail like that.
btw the pump wenrt priming for a while so has this somthing to do with that?
and just to confirm the furl pump relay is the 4th one from the left and on the top?
thanks
Posted
Local Hero
Pump buzzing is a bad way to indicate if its running or not. Most pumps run very quietly, buzzing means its on its way out or dirt/rust clogged in it somewhere. Relays just fail, esp if cheep ounes1
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ok sorry i over done the buzzing bit i just meant the normal priming sound
Posted
Old Timer
what car is it?
have a look in the fuse box the fuel pump relay has an inline fuse (blue one 10a?) if this fuse has blown your car won't start so check that.
if thats ok i could be the relay itself may need soldering.
try that let us know what happens
have a look in the fuse box the fuel pump relay has an inline fuse (blue one 10a?) if this fuse has blown your car won't start so check that.
if thats ok i could be the relay itself may need soldering.
try that let us know what happens
1982 Non Sunroof Black 1600 GTI
2003 MKIV Golf PD150 GT TDI
2003 MKIV Golf PD150 GT TDI
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ok brighed the 2 big terminals on the fusebox where the fuel pump relay goes and the pump started priming and started.
so anyone got a relay for sale, or can i repair this one???
so anyone got a relay for sale, or can i repair this one???
Posted
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ok got a relay and the car started but car still does not prime :roll:
but new problem today
right went shopping come out, start car and nothing just kept on cranking, so pulled the fuel pump relay tapped it on the dash put it back in and it started.
got onto the main road and the car just stopped so tryed the same thing as i did before but nothing anyway called the AA as i was in a dangerous area, turns out it only the fuse,
so on my way home and car cuts out again lucky i had a bag of fuse put a other 15amp fuse in and on my way again 2 mins after pop again fuse gone again so got pissed off and put a 35amp fuse in as i was 5mins away from home.
so why is it popping the fuse??
AA guy said it might be a faulty relay so gona buy a new one tomorrow, other then that he said my pump might be on its way out but try a new relay first
and is it ok to drive around with a 35amp fuse in :dontknow:
but new problem today
right went shopping come out, start car and nothing just kept on cranking, so pulled the fuel pump relay tapped it on the dash put it back in and it started.
got onto the main road and the car just stopped so tryed the same thing as i did before but nothing anyway called the AA as i was in a dangerous area, turns out it only the fuse,
so on my way home and car cuts out again lucky i had a bag of fuse put a other 15amp fuse in and on my way again 2 mins after pop again fuse gone again so got pissed off and put a 35amp fuse in as i was 5mins away from home.
so why is it popping the fuse??
AA guy said it might be a faulty relay so gona buy a new one tomorrow, other then that he said my pump might be on its way out but try a new relay first
and is it ok to drive around with a 35amp fuse in :dontknow:
Posted
Local Hero
amzee said
ok got a relay
New or secondhand?
Posted
Old Timer
shouldnt put any more than a 15a in it.
gsf do new relays, i think they're less than a tenner.
good luck
gsf do new relays, i think they're less than a tenner.
good luck
1982 Non Sunroof Black 1600 GTI
2003 MKIV Golf PD150 GT TDI
2003 MKIV Golf PD150 GT TDI
Posted
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paul_c said
amzee said
ok got a relay
New or secondhand?
it was second hand ops:
Posted
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anyone ops:
Posted
Local Hero
I think its been suggested already - try a NEW relay. I suppose its possible that a dodgy fuel pump would keep blowing fuses, but I'd have thought it (fuel pump) either works, or doesn't.
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got a new relay today and now the car primes.
but as i used all my 15amp fuse got used up i have put a 20amp for now till i get aother 15amp
hopfully it was just the relay as i smelt burnt
and the cars running fine
thanks
but as i used all my 15amp fuse got used up i have put a 20amp for now till i get aother 15amp
hopfully it was just the relay as i smelt burnt
and the cars running fine
thanks
Posted
Old Timer
my last pump started blowing fuses just before it died - I had rubbish coming through from the tank. The extra load of trying to get the bits through the small pump mechanism inside was enough to pop fuses. That was untill there was just too much c**p and the pump seized, at which point it was constantly popping them without pumping at all. (being quite inquisitive I took the old one apart to see what had happened/if it could be salvaged!)
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Fuel pump relay price
You got a part number and price for that relay and does it have the fuse on it?
Birmingham
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