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Author Removing battery
oceansoul
Member
Registered: 19th Jun 06
Location: Sunbury, Surrey
User status: Offline
4th Jul 10 at 14:44   View User's Profile U2U Member Reply With Quote
With the engine running? Will it cause the engine to stop? I think the engine will continue to run due to the alternator.

A friend has a problem with her car cutting out sometimes and thinks the battery + terminal is coming off causing it. (yes I've told her to tighten it, bit she stopped hasn't)
Jamie_Hastings1
Member
Registered: 14th Aug 08
Location: Sanquhar, Dumfries and Galloway
User status: Offline
4th Jul 10 at 14:46   View User's Profile U2U Member Reply With Quote
Will cut out. Ecu will lose power. Why not turn it off,change battery then restart?
sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
User status: Offline
4th Jul 10 at 14:57   View User's Profile U2U Member Reply With Quote
Na alternator is connected to the battery first, no battery, no spark, no engine running.
davieslim
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Registered: 15th Sep 08
Location: Glasgow City
User status: Offline
4th Jul 10 at 15:02   View User's Profile U2U Member Reply With Quote
the car will continue to run for a short time on the charge in the alternator before cutting out, but it can damage the alternator leaving it off for to long
sand-eel
Member
Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
User status: Offline
4th Jul 10 at 15:06   View User's Profile U2U Member Reply With Quote
How can it though? If the alternator isn't connected directly to ecu, injectors, coil etc.
davieslim
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Registered: 15th Sep 08
Location: Glasgow City
User status: Offline
4th Jul 10 at 15:10   View User's Profile U2U Member Reply With Quote
i dont know the scientific explanation but it does, ive swopped batterys on cars plenty of times while the cars still been running
Corsa_Sport21
Member
Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
User status: Offline
4th Jul 10 at 15:11   View User's Profile U2U Member Reply With Quote
Some1 go and try it,settle this.

I would go do it but the ECU in the 1.0 controls everything so aint taking the chance incase it fuks up.
oceansoul
Member
Registered: 19th Jun 06
Location: Sunbury, Surrey
User status: Offline
4th Jul 10 at 15:15   View User's Profile U2U Member Reply With Quote
I thought the battery and alternator were in parallel with each other, so the alternator can charge the battery and supply the cars electrics. Whilst the battery is just for starting the car.
Graham88
Member
Registered: 16th Apr 07
Location: South East Kent Drives: E46 M3
User status: Offline
4th Jul 10 at 15:28   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by oceansoul
I thought the battery and alternator were in parallel with each other, so the alternator can charge the battery and supply the cars electrics. Whilst the battery is just for starting the car.

I also thought this.

 
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