Voltage Problems
Thread Starter
Melting Slicks
Joined: Feb 2004
Posts: 3,055
Likes: 0
From: Sarcasm. Just one of the many services I offer.
Voltage Problems
My friend has a 89 vette that is not putting out enough voltage. The volts stay around 11 when the car is running. This can't be normal because on my 86 the volts stay around 13.6 when running. The battery is new and he had the alternator checked. What else might be causing the problem?
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
I'm assuming you do NOT have an uderdrive crank pulley.
Check all connections at the alt and at the battery. Then measure voltage at the alt output at idle to see if it agrees with the gauge.
If all is well so far and your new battery is good, the problem is in the alt.
Check all connections at the alt and at the battery. Then measure voltage at the alt output at idle to see if it agrees with the gauge.
If all is well so far and your new battery is good, the problem is in the alt.
Team Owner
Joined: Sep 2003
Posts: 20,172
Likes: 672
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Are you quoting the voltage reading from the vehicle guage? If so, try hooking up a voltmeter and using it to compair voltages between your Vettes. Maybe his guage is just reading low.
If your still concerned, go to Sears and use their Diehard Express lane. They'll do a full system diagnostic test while you watch.
-JRC-
If your still concerned, go to Sears and use their Diehard Express lane. They'll do a full system diagnostic test while you watch.
-JRC-
Last edited by JrRifleCoach; Sep 7, 2004 at 01:21 PM.
