ChrisLeary
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 posted on 12/8/11 at 05:31 PM |
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Ignition light (again)
Evening all,
I've got a 2.0l zetec in the 7 and the ignition light stays on and flickers when the engine isn't under load (decelerating).
I've tried tracing the large cable from the alternator and it seems to go into the fuse box, I was under the impression that there was a direct
link between the alternator and the positive terminal on the battery?
I'm a novice with electronics so any help is brilliant.
Cheers,
Chris
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macc man
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| posted on 12/8/11 at 06:34 PM |
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Have you checked if the alternator is charging properly. If you have a multimeter test the battery voltage with engine off. Note the reading. Test
with engine running, there should be an increase in voltage if all is well. Check all connections are corrosion free and tight. Check battery earth
and plug on alternator for loose fit. Best of luck.
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Macbeast
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| posted on 12/8/11 at 07:27 PM |
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Check that the belt driving the alternator is tight.
I'm addicted to brake fluid, but I can stop anytime.
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daviep
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| posted on 12/8/11 at 10:55 PM |
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quote:
Originally posted by Macbeast
Check that the belt driving the alternator is tight.
+1 basics first
“A truly great library contains something in it to offend everyone.”
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britishtrident
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| posted on 13/8/11 at 06:04 AM |
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As above but if the light is only coming on the over run it to me suggests a bad connection at the rear of the alternator, the old style standard 3
blade connectors used on ACR alternators were very prone to this.
Clean the blade connectors up with (best to remove rear plastic cover to do this) and make sure the female connectors have a good bight on the
blades,
[Edited on 13/8/11 by britishtrident]
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ChrisLeary
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| posted on 13/8/11 at 09:38 AM |
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The alternator belt is tight, like you say, check the basics first.
I'll have a look at the terminals later on and see what they're like.
But is it right that there should be a direct connection between the battery and alternator on a zetec?
Cheers,
Chris
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eddie99
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| posted on 13/8/11 at 09:50 AM |
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The starter, alternator and battery will have connections between them. Its not a bad thing to not have a direct connection between alternator and
battery, it might be alternator to starter.
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