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Old 02-14-2018, 12:39 AM   #12
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Join Date: Jan 2013
Location: Simi Valley, CA
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Re: Sudden idle problem

Originally Posted by bob8619 View Post
12.4 volts engine off. 11.4 volts while running.
12.6V is a charged battery. If your system doesn't have a minimum of 13.5V while running, you are not charging your battery, and not supporting the rest of the system.

An alternator/regulator/drive belt are in your future. I vote drive belt tension first.
'70 Chevy 3/4T Longhorn CST 400/400/3.54 Custom Camper

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