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2004 Mazda 6 electrical / alternator

Tiny
TUMBA
  • MEMBER
  • 2004 MAZDA 6
  • 3.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Last night I was driving my 2004 mazda 6 Sportwagon home and suddenly all power shut off to the engine. I have headlights radio all electrical but no power to the engine I beleve I can hear the ignition relay click I have dash lights. The gauges go nuts the battery is maybe 2 yr old when I turn on ignition and test the lights all power to the accessories work.
I do know they're starting to go dimmer.
Would the battery actually stop the car from running if it was weak? I suspect it might be the alternator but could it be the hundred and 20 amp main fuse I just don't know what to do I cannot get to the alternator because the plenum is in the way help me please
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Monday, April 14th, 2014 AT 8:36 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
If the alt gave out and the batter drained, it could shut the engine. I hate to say it, but you need to fully recharge the battery and see if that makes a difference. If it does, then the alternator has to come out and be tested.
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Monday, April 14th, 2014 AT 8:40 AM
Tiny
TUMBA
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  • 2 POSTS
Thank you for the prompt reply since then, I have jumped the car
it almost starts to turn over but coughs and dies within 2 seconds I suspect its the fuel pump what say you?
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Monday, April 14th, 2014 AT 1:20 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
If the battery is charged, then I feel it would be a good idea to check fuel pump pressure.
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Monday, April 21st, 2014 AT 8:29 AM

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