Important! : humming underneath car. wont start

1. ssaaxxoo Infrequent Poster Joined: Jan 2010 Posts: 120 saxo 1.1 desire

   #1 15th February 2011, 19:31

   just gone to go out and car wont start i get a 'click' and nothing. soon as i unlocked it i got a humming noise from back of car. turn lights on, dim. like batterys being drained. disconnected battery then reconnected and humming starts straight away. what the hell..
2. VTHall Saxperience Forum Bum Joined: Apr 2010 Telford Posts: 4501 Black corsa c SXI.

   #2 15th February 2011, 19:40

   battery dead?
   Got a sub or anything in there?
   the hum could be the fuel pump.
3. ssaaxxoo Infrequent Poster Joined: Jan 2010 Posts: 120 saxo 1.1 desire

   #3 15th February 2011, 19:43

   hi, no it hasn't got a sub. the humming starts as soon as i connect the battery up. whatever it is is draining it because nothing happens and now the lights barely come on. the fuel pump shouldn't be doing anything if i haven't even got keys in it surely!
4. VTHall Saxperience Forum Bum Joined: Apr 2010 Telford Posts: 4501 Black corsa c SXI.

   #4 15th February 2011, 19:44

   Quote:

   Originally Posted by ssaaxxoo hi, no it hasn't got a sub. the humming starts as soon as i connect the battery up. whatever it is is draining it because nothing happens and now the lights barely come on. the fuel pump shouldn't be doing anything if i haven't even got keys in it surely!

   oh right, not sure then, sorry i cant help you any further lol. PM steveo on here, im sure he will know, he knows his stuff.
5. user_30040 Established Member Joined: Jan 2009 Bridlington Posts: 1496 Audi A3

   #5 15th February 2011, 19:48

   I used to get the click noise when the battery was dead, Or mabey a loose connection?
6. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #6 15th February 2011, 19:48

   Sounds like the fuel pump relay,under the ecu tray I believe.
   
   Steve.
7. VTHall Saxperience Forum Bum Joined: Apr 2010 Telford Posts: 4501 Black corsa c SXI.

   #7 15th February 2011, 19:51

   Quote:

   Originally Posted by stevo67 Sounds like the fuel pump relay,under the ecu tray I believe. Steve.

   speak of the devil!
8. ssaaxxoo Infrequent Poster Joined: Jan 2010 Posts: 120 saxo 1.1 desire

   #8 15th February 2011, 19:54

   Are you saying it could be something loose?
   
   cheers for the help
9. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #9 15th February 2011, 20:00

   Quote:

   Originally Posted by ssaaxxoo Are you saying it could be something loose? cheers for the help

   Could be also the relay contacts maybe dirty so unplug it clean the contacts & try again.
   
   
   Steve.
10. ssaaxxoo Infrequent Poster Joined: Jan 2010 Posts: 120 saxo 1.1 desire

    #10 15th February 2011, 20:13

    Think i'll have to ring a garage hope doesn't cost alot.
    
    was meant to be going out, thanks saxo..
11. ssaaxxoo Infrequent Poster Joined: Jan 2010 Posts: 120 saxo 1.1 desire

    #11 16th February 2011, 20:18

    tried all relays no luck. fuel pump seems to be constantly priming when battery is connected..
12. ssaaxxoo Infrequent Poster Joined: Jan 2010 Posts: 120 saxo 1.1 desire

    #12 18th February 2011, 13:15

    Charged the battery (humming got worse when connected up again) and got it to start!! stayed around 500 revs sounding terrible, gave it some revs then took foot off and it went back to around 500 then cut out.
    
    Any ideas ?
    
    Cheers