Pulsating Lights
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Junior User
Joined: Jun 2006
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From: Abbotsford B.C
Pulsating Lights
I have a 2004 F-350 with a 6 litre..Original alternator packed it in and now with the new alternator my lights are pulsating.not bad but it is noticeable..I noticed it after installing the new alt.....so i took it back and got another 1 and i still have the pulsating with the lights...It is charging fine...I also cleaned the ground that attaches to the block..Is there anyone out there that might know where the problem could b....Also b 4 replacing the original i had no pulsating with the lights...thx
Moderator
Joined: Jan 2001
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From: Virginia
Check your connections on the alternator to make sure none of them are melted a little bit, or the connectors are spread open inside the plugs. Also make sure the bracket that holds it to the engine block is tight with no corrosion. As an experiment, you might want to get a scrap piece of wire and run it from the engine block to the alternator case and see if the problem goes away.
Cargo Master
Joined: Sep 2004
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Originally Posted by Franklin2
As an experiment, you might want to get a scrap piece of wire and run it from the engine block to the alternator case and see if the problem goes away.
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Joined: Jan 2001
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From: Virginia
Well, on the old charging systems, the pulsating lights is commonly caused by an improper ground to the regulator.
It looks like the alternator is charging, but the regulator doesn't have very good control, so I am assuming it may be the same problem, but his regulator is built into his later type alternator, so I was thinking along the same lines of making sure the ground was ok to the alternator.
It looks like the alternator is charging, but the regulator doesn't have very good control, so I am assuming it may be the same problem, but his regulator is built into his later type alternator, so I was thinking along the same lines of making sure the ground was ok to the alternator.
