Ford Scorpio Forum - Print Page


    
      
        Ford Scorpio Forum
        (https://www.fordscorpio.co.uk/cgi-bin/yabb/YaBB.pl)
      

        General >> Problems >> Battery Keeps Going Flat
        
(Message started by: spencer on Feb 27^th, 2005, 4:42pm)

Title: Battery Keeps Going Flat
Post by spencer on Feb 27^th, 2005, 4:42pm

Since owning my new Scorpio and having major work carried out if I leave the car for more than 36 hours without starting it the battery is completly flat. I replaced the old battery with a deep cycle optima battery but still the same thing happens. I have had the electrics tested and there are no dead shorts on the vehicle so Iam completely puzzled. Does anyone have an Idea

regards

Spencer

Title: Re: Battery Keeps Going Flat
Post by scorpio_man on Feb 27^th, 2005, 5:22pm

hi there

have you checked the glove box light goes out? or the boot?

you say you've had the electrics checked, what about for a drain? one problem with the scorpio is the alternator diodes start allowing current to drain.

work you're way through....
http://www.fordscorpio.co.uk/electsystemtest.htm
http://www.fordscorpio.co.uk/alternatorer.htm

Title: Re: Battery Keeps Going Flat
Post by spencer on Feb 27^th, 2005, 11:50pm

I have recently replaced the alternator and also purchased a yellow top optima deep cycle battery. The Alternator is pushing out 13.85 volts on tickover with nothing running which I,ve been told is normal. The battery however loses 0.5volts approx. every 7 hours. From what you say the alternator may be new but the diodes could be broken causing the discharge is this correct.

regards

Spencer

Title: Re: Battery Keeps Going Flat
Post by ren on Feb 28^th, 2005, 12:09am

could check fuse 36 in the auxiliary fuse box
which is for the battery power saver.

Ren

Title: Re: Battery Keeps Going Flat
Post by spencer on Mar 4^th, 2005, 7:17pm

Thanks all for your comments I have sorted the problem. Apparently a modification was made to the Auxilliary fuse box soon after the Scorpio had been released. The problem was that during wet/damp weather water used to run behind the auxilliary fuse box causeing very odd behaviour. Examples ignition lights flickering on, Main beam on head lights coming on, Air bag light flickering on and many more. all these issues caused the battery to go flat when the ignition was off. Problem solved by having the Auxilliary fuse box replaced with the new modified version. Cost for it to be supplied and fitted £175.00 + VAT

Hope my findings assist with other peoples problems of the same kind.

regards

Spencer

Title: Re: Battery Keeps Going Flat
Post by Captain / Vice Admiral on Mar 5^th, 2005, 12:24am

Thanks for your input and advice - waterlog obviously initiated the fault - Glad its all sorted - see you at Weston 2005

Captain

Title: Re: Battery Keeps Going Flat
Post by Geoff_W on Mar 5^th, 2005, 10:31am

Captain

Did it happen to you as well?

Or is that just a proprietorial interest.

See you at Harewood?