Notices
General Technical
Sponsored by:
Sponsored by: CARiD

Fuel pump won't. Prime

Thread Tools
 
Search this Thread
 
Old Mar 18, 2012 | 11:25 PM
  #1  
nikknight22's Avatar
nikknight22
Thread Starter
Scooby Newbie
 
Joined: Mar 2012
Posts: 3
Likes: 0
From: nottingham
Default Fuel pump won't. Prime

Hi I'm new to this ..I brought an impreza rb5 1999 2.0 turbo in noverber last year was well looked after full service history one lady owner it's been perfectly fine and on Friday the fuel light came on so when to fill up go there put petrol in started the car and drove about 10 feet and it died started it again and ran real bad way below 1000rmp on idle now won't start at all pump won't prime and I got a tow home I cheaked all fuses in side and under bonnet all fine I've chcked the 2 connections under bak seat there fine and have power I took fuel pump out and put power to it that's fine too could it be fule relay or some thing more serious like imobilser ? I'm struggleing what to do next I've found and read a few things on here can any one help thanks
Reply
Old Mar 19, 2012 | 10:39 AM
  #2  
Mark Pile's Avatar
Mark Pile
Scooby Regular
 
Joined: Mar 2012
Posts: 40
Likes: 0
From: Wolverhampton
Default

first thing u have to check is there power at the pump when you switch ignition on, there maybe a break in wire somewhere, check voltage at both sides of the plug under the back seat u could have power 1 side but not the other (happend on my wagon), if thats ok take pupm out and test for power there, put volt meter on both the wire to make sure your getting power and ground feeds, if still no good then check feeds at the brown relay just above the fuse box, it is in the middle of 2 cylindrical silver 1's, again check feeds,
Reply
Old Mar 19, 2012 | 07:12 PM
  #3  
burbling1's Avatar
burbling1
Scooby Regular
15 Year Member
iTrader: (1)
 
Joined: Jan 2008
Posts: 1,030
Likes: 1
From: Scarborough
Default

If you have v's at the pump then chances are the fuse, relay and wiring is all ok. I would say its the pump itself, I know you said you put a direct feed to that and it worked ok but just by removing it and refitting it can make them work again. I had the same issue on my 95 wagon a few years ago, I would take the pump out give it a few taps then it would work again for a while. Double check you have voltage at the pump connector refit the pump and see what happens. There have been a few cases were the wiring under the back seat has failed and needed replacing.
Reply
Old Mar 19, 2012 | 08:52 PM
  #4  
mickywrx's Avatar
mickywrx
Unmapped 12.4s @ 105
20 Year Member
iTrader: (29)
 
Joined: Apr 2005
Posts: 11,778
Likes: 4
From: Newcastle. 330bhp-289lb/ft @ 1bar boost - 12.4s @ 105mph
Post

Fuel pump relay is a probability.

It's a bit of a pig to get to though.



That's what you're looking for, I believe they are all the same for classics.

It's located under the dash, drivers side, up above the fuse box.
Reply
Old Mar 19, 2012 | 09:00 PM
  #5  
nikknight22's Avatar
nikknight22
Thread Starter
Scooby Newbie
 
Joined: Mar 2012
Posts: 3
Likes: 0
From: nottingham
Default

thanks ALL for the advice im going to crack on with it now ill let u know how it goes
Reply
Old Mar 19, 2012 | 09:51 PM
  #6  
Eprom's Avatar
Eprom
Scooby Regular
20 Year Member
 
Joined: May 2003
Posts: 502
Likes: 1
Default

If there's no voltage to the pump, and relay and fuse are all ok, i would look at the alarm system MY99 had a similar problem, cant go into to much detail in the public forum, but can point you in the right direction via PM.
Reply
Old Mar 19, 2012 | 10:14 PM
  #7  
nikknight22's Avatar
nikknight22
Thread Starter
Scooby Newbie
 
Joined: Mar 2012
Posts: 3
Likes: 0
From: nottingham
Default

eprom, everything seems ok all fuses relays are fine changed fuel pump relays still no good, no power to pump at all can u pm me some info on what u had to do cheers mate
Reply
Old Mar 19, 2012 | 11:35 PM
  #8  
albob's Avatar
albob
Scooby Regular
25 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2000
Posts: 3,222
Likes: 64
Default

immobiliser....... have a search in 'general tech' - several threads on this
Reply
Old Mar 19, 2012 | 11:49 PM
  #9  
ronjeramy's Avatar
ronjeramy
Scooby Regular
iTrader: (1)
 
Joined: May 2006
Posts: 7,833
Likes: 0
From: Cas Vegas
Default

Ecu packed up?
Reply
Old Mar 20, 2012 | 07:11 PM
  #10  
scoobwrx94import's Avatar
scoobwrx94import
Scooby Regular
 
Joined: Jul 2009
Posts: 669
Likes: 0
Default

quick way round it put it on a seperate toggle switch
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
Dec 28, 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
Nov 18, 2015 07:03 AM
Ganz1983
Subaru
5
Oct 2, 2015 09:22 AM
yabbadoo4
ScoobyNet General
11
Sep 30, 2015 10:33 PM
IAN WR1
ScoobyNet General
8
Sep 28, 2015 08:14 PM




All times are GMT +1. The time now is 06:53 AM.