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voltage drops to yellow at WOT?

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Old 09-23-2010, 07:55 PM
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Default voltage drops to yellow at WOT?
been having this issue for awhile. Have a new battery, new belt, and a katech solid tensioner. Whenever i go WOT the voltage drops to yellow and will stay there for awhile.

Any ideas?
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Old 09-24-2010, 12:34 AM
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Did you ever have your alternator checked out? Thats not normal.
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Old 09-24-2010, 01:24 AM
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its a new alternator and otherwise it works fine.

Strange thing is I just drove around for like 15 - 20 mins and the voltage has still not returned.
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Old 09-24-2010, 07:26 AM
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Just because its new, doesn't mean its good. Very common for a rebuilt alternator to be a dud out of the box.
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Old 09-24-2010, 07:30 AM
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Agreed. Alternator is junk.
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Old 09-24-2010, 08:10 AM
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Get it tested but IMO like others said it is not recharging sufficently.
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Old 09-24-2010, 11:04 AM
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Either the alternator isn't charging or the belt isn't turning the alternator correctly.
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Old 09-24-2010, 12:06 PM
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going to say im with you guys on alternator. Still has not brought the charge up. Going to get a new one.
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Old 09-24-2010, 12:33 PM
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Get a Truck alternator it worked for me and make sure its a 145amp. I asked for a 2003 Tahoe. Only difference is you wont have to bolt up the rear bracket.
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Old 09-24-2010, 09:09 PM
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x100 on truck alt
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