sprouly07 Donating Members 62 Member For: 10y 7m 25d Gender: Male Location: Townsville Posted 22/04/16 11:14 PM Share Posted 22/04/16 11:14 PM So I had a issue with the immobiliser coming on in the f6 the other day. Got in it and drove it about 3 minutes down the road to go to the supermarket and then when I came out I went to start it and it would think and cranking and then just immobilise. So I jumped out tried lockking and unlocking the car but that achieved nothing. Lucky I had a multimeter in the car at the time and the battery was reading 12.2v which I didn't think was that bad. Called a mate and he turned up with a new battery and that fixed the issue anyway. Now I know that a battery is suppose to be a little higher than 12v but I would have thought 12.2v would have been enough to start it. The voltage could have been dropping when it tried to crank but I didn't test that. While I was googling to try and find the issue I read a couple people saying that if its under 12.4v it will immobilise. Anyone know if this is actually true and if so why they are so sensitive to voltage?? Link to comment Share on other sites More sharing options...
espoig Donating Members 249 Member For: 10y 6m 5d Gender: Male Location: Mundaring Posted 23/04/16 01:01 AM Share Posted 23/04/16 01:01 AM The newer Fords and holdens have been pretty picky with battery voltage and can cause some weird things to happen if it aint right Link to comment Share on other sites More sharing options...
Lennox Member 2,586 Member For: 12y 12d Gender: Male Location: Perth Posted 02/05/16 11:01 PM Share Posted 02/05/16 11:01 PM Voltage will drop when cranking the engine. They do weird sh*t with low battery voltage, good to just replace it or charge it and move on with life... Mine flashes up transmission not in park when the battery is low. Why I have no idea.. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,297 Member For: 16y 11m Gender: Male Location: Melbourne Posted 02/05/16 11:13 PM Share Posted 02/05/16 11:13 PM (edited) Yep, FG's in particular do some weird things when the battery is either loosely connected or low on voltage. When After cranking, the battery will jump up in reading voltage to well over 13 volts as the starting charging system applies some extra juice. If it can't get to high/mid 12's then it probably will be low on charge or the starting/charging system has an issue (unlikely) and you'll have issues starting. EDIT: silly mistake. Have corrected. Edited 03/05/16 02:00 AM by k31th Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,331 Member For: 19y 5m 15d Gender: Male Location: Perth Posted 02/05/16 11:42 PM Share Posted 02/05/16 11:42 PM 27 minutes ago, k31th said: Yep, FG's in particular do some weird things when the battery is either loosely connected or low on voltage. When cranking, the battery will jump up in reading voltage to well over 13 volts as the starting system applies some extra juice. If it can't get to high 12's then it probably will be low on charge or the starting system has an issue (unlikely) and you'll have issues starting. Chloe.gif + Spinycat.gif Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 9m 7d Gender: Male Location: Adelaide Posted 02/05/16 11:49 PM Share Posted 02/05/16 11:49 PM (edited) Totes magical voltages from the free air society Edited 02/05/16 11:49 PM by JETURBO Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,297 Member For: 16y 11m Gender: Male Location: Melbourne Posted 02/05/16 11:49 PM Share Posted 02/05/16 11:49 PM What would you know about totes, J@? 8 minutes ago, Ralph Wiggum said: Chloe.gif + Spinycat.gif spinycat.gif? ... you're one weird publicly showing channer Link to comment Share on other sites More sharing options...
Lennox Member 2,586 Member For: 12y 12d Gender: Male Location: Perth Posted 02/05/16 11:52 PM Share Posted 02/05/16 11:52 PM Free voltage woohooo 1 Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 9m 7d Gender: Male Location: Adelaide Posted 02/05/16 11:54 PM Share Posted 02/05/16 11:54 PM I do know load doesn't have a reaction to generate voltage out of thin air #prosparkoligist 1 Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,331 Member For: 19y 5m 15d Gender: Male Location: Perth Posted 02/05/16 11:55 PM Share Posted 02/05/16 11:55 PM TIL back emf charges while cranking. Link to comment Share on other sites More sharing options...
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