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86 911 Targa 86 911 Targa is offline
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Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
Keep in mind that while using the A/C, the current load on the alternator is quite high due to the condenser/interior fan.

It is not unusual for your system voltage to drop a bit under these conditions.

You may incur additional voltage drop(s) by adding additional loads to the system such as headlights ect..

Good luck,

Gerry
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1986 911 Targa.
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Old 08-29-2009, 01:22 PM
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