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Car starting briefly then shutting off

Charli

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Today went I went to start my car it sort of started then shut off,I then tried another 3 times and the same thing happened. It's happened before a couple of times here and there,I've been told that it's probably an oxygen sensor but which one would it be or should I just replace them all
 

ant797

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Not likely an oxygen sensor they usually have symptoms of blowing smoke or running rough excessive fuel consumption never heard of them shutting the car down ....as the other guy said check your codes if no codes ..I would check fuel pressure you might have a week pump or blocked fuel filter or it could be electrical ..I would be hoping it's fuel related though electrical problems on commodores are all the way up the garden path
 

TheIceman

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i had mine not start today for some reason, cranking and cranking a few times and no go. was just about to give up and get the battery charger out as it was slowing down after all the cranking then it just burst into life.
 

BowTie

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Dodgy fuel pumps do that^.

Mine does that when not full and has dodgy gauge.

Complete fuel pump unit is the fix, but you have to empty and drop the fuel tank to change it.

My mechanic reckons a couple of hours for me.
 

TheIceman

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That was the next post I read.

Doh.
but if you havent done one before then maybe a couple of hours, ive done heaps of fuel pumps on commodores, mainly on hoists though.
 

krusing

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Faulty Key Head
Faulty Slip Ring
immobiliser not turning off.

Get is scanned to see what its doing, or not doing.
Not all DTC's will activate the MIL indicator.
 

XUV

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If it's throwing a CHECK ENGINE, then it's the key, Try your spare key
 
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