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Chris (aka-Moose)
Chris (aka-Moose), Auto Technician
Category: Toyota
Satisfied Customers: 47982
Experience:  16 years of experience
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Idling with ac on kills electric system and drains battery.

Customer Question

Idling with ac on kills electric system and drains battery. Electrical test shows bad voltage regulator on new alternator. Bench test on alternator shows 100% good. Do not have the problem while driving 100 miles per day, only at idle with ac running. What am I missing in the charging system?
Submitted: 2 years ago.
Category: Toyota
Customer: replied 2 years ago.
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Chris (aka-Moose) replied 2 years ago.
Can I get the year, make, model, and engine?
Customer: replied 2 years ago.
99 avalon xls v6 (3000 I think )
Expert:  Chris (aka-Moose) replied 2 years ago.
While idling the battery voltage should be 13-15 volts, if its lower than this, then the alternator is to blame, at idle speed it can not keep up with the electrical load. When bench tested, they are spun faster than idle speed and not at the full electrical load. You want a excellent 5 star answer & I would like to be rated the same for providing it. Consider I don't know your skill level & I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies. Try your best to respond with good detail so I can do the same. I normally log in at 3pm and work late. A rating is required. Your rating me, what I type. I am not an employee of this website, nor have control over the fees or the time it took to get a response. If you rate negative or not at all you still paid, but I get nothing. I want you pleased with me and my efforts, so let me know if your experience here has come up short.Thanks Chris