Alternator help

Reply Subscribe

Thread Tools

Search this Thread

Mar 30, 2009 | 09:15 PM

#16

ronxp2000

Thread Starter

Senior User

Joined: Mar 2004

Posts: 128

Likes: 0

Thanks

Thanks for the confirmation, I am glad to know it has a light too.

Thanks. I'll even check it out.

Good deal.

Quote:

Originally Posted by KingRanchMan02

Your truck has a battery light and a battery guage. When you turn the ignition switch on the system does a check of the electrical system and computer with all of the lights in the dash being illuminated. Make sure that the battery symbol light comes on at this time. If it does not, the light in the dash needs to be replaced and is why you haven't seen a light come on. This light should come on if the battery is not charging properly.
The battery guage is not a true voltmeter but more a glorified idiot light. It indicates only that the voltage is in a normal range of 13.5 - 15 volts when the engine is running. When the voltage is in this range, the guage will indictate right in the middle of the range and will not vary at all even if the level is changing.
With the engine off the voltage should be 12 volts and with the engine off but ignition on it should still be 12 volts. Good luck!