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EB 5.0 Mont electrical gremlins strike again 

 

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 Post subject: EB 5.0 Mont electrical gremlins strike again
Posted: Sun Apr 06, 2014 8:04 pm 
Oompa Loompa
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Age: 46

Posts: 22

Joined: 28th Feb 2008

Ride: EB2 Fairmont Ghia

Location: Waitakere
New Zealand

Fresh battery in the mont and clicky click click with an ever diming dash lights - jump start, it thinks about it and winds up slowly, once running its ok- however if i engage the headlights it cuts out and cant be started again... Odd. Battery leads all on tight, no blown bulbs... :cry:

 

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 Post subject: Re: EB 5.0 Mont electrical gremlins strike again
Posted: Sun Apr 06, 2014 9:53 pm 
Technical Contributor
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Joined: 13th Jul 2013

Location: Campbelltown
NSW, Australia

new or second hand battery ? is it charged?
if battery is susspect and your alternator is not charging engine will cut out when load applied due to insufficent voltage to operate coil and or ECU. - note that it is possible to not be charging if the battery is faulty.

check battery voltage with a multimeter - standing voltage approximately 12.00 volts -should hold no lower than approximately 9.00-9.50volts while cranking - if not- charge battery and retest - if still not correct replace battery.

check charge voltage with engine running approximately 13.5 - 14.5 volts .
check all earth wires are connected at battery and that battery is negative to earth -check for positive power at alternator heavy (6mm)wire if none check fuse links.....if voltage is still low replace alternator
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 Post subject: Re: EB 5.0 Mont electrical gremlins strike again
Posted: Wed May 21, 2014 11:54 pm 
Fordmods Newbie
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Age: 33

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Joined: 17th May 2014

Ride: Ford Falcon XF

Location: Newcastle
NSW, Australia

Also check current going to the alternator with the engine not running with a multimeter. Depending upon how long you've had the new battery in there it could've discharged overnight through the diode pack via a short.

If there is like 10mA or less then thats nothing to worry about, but if its higher than that then I would worry. Anything higher than 40mA coming out of the battery when everything has settled down (lights are off, doors are locked.) is excessive.
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