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Old 12-13-2010, 01:10 PM   #3
tdp67
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Join Date: Apr 2010
Location: Rowlett, TX
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Re: Lights dimming at idle.

Quote:
Originally Posted by Allensracing View Post
what year is the truck? or more importantly, what alternator are you using? it used to be normal for the charging system to not keep up at idle. those 35 amp alternators cant keep the headlights going at idle
it sounds like the alternator is not giving enough juice at low rpm
Sorry, forgot to mention it's a 67 with a 350 crate in it. Not sure about the alternator. How do I tell?
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