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Question

MY 95 CHEVY TAHOE BRAKE LIGHTS DON'T WORK. FUSES ARE GOOD AND TAIL AND HAZZARD LIGHTS WORK OK. IS IT THE BRAKE SWITCH THAT NEEDS TO BE REPLACED? THE BATTERY LIGHT COMES ON AND THE METER INDICATES NOT CHARGING. REPLACED ALTERNATOR AND BATTERY. WORKED FOR A WILE. NOW THE BATTERY LIGHT COMES ON AND OFF AND THE METER SOMETIMES READ FULL CHARGING AND SOMETIMES 9 VOLTS. WHAT COULD IT BE? THANKS FOR YOUR HELP. AL.

Submitted: 764 days and 10 hours ago.
Category: Chevy
Value: $9
Status: CLOSED
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Posted by Virtual Wrench 764 days and 10 hours ago.

Info Request

Hello Al,

Where did you get the alternator from?

764 days and 10 hours ago.

Reply

Reply to Virtual Wrench's Post: NAPA

764 days and 10 hours ago.

Reply

NEW ATERNATOR AND BATTERY FROM NAPA.

Accepted Answer

Thanks,

This is a very straight forward charging system. The whole works are integrated into the alternator, and i'm sure you just happened to get a bad one. The internal voltage regulator is malfunctioning.

You will need to take the truck to them and show them and they can test it right there on the truck. The reason i say to take the truck there instead of just the alternator, is because alot of times when they bench test it, it will show its good, thats because this can go intermittant. So its important they see it.

Replace it, and i'm certain it will fix the issue.

 

.

If you have further questions on this, please feel free to reply.

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Expert: Virtual Wrench
Pos. Feedback: 99.6 %
Accepts: 
Answered: 10/21/2007

Master Tech

30 years/Master Tech. Foreign and Domestic

764 days and 10 hours ago.

Reply

THANKS. HOW ABOUT THE BRAKE LIGHT QUESTION?

Posted by Virtual Wrench 764 days and 10 hours ago.

Answer

Oops, missed that one..

If the fuse is good then yes, most likely its the switch, VERY common to fail.

You can verify it by jumpering the orang and white wire at the switch,,if they come on,,,replace the switch.

 

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