OMG Not again,, altinator
Melting Slicks
Joined: Feb 2003
Posts: 3,053
Likes: 4
St. Jude Donor '03,'11
buy a cheap voltmeter. Check the voltage on the batt with engine off. Then start the car and check it. Should get 12-13 volts off and 14+ volts on.
if that checks out check for drain on the battery while the car is off. A better multimeter will have a milliamp range.
if that checks out check for drain on the battery while the car is off. A better multimeter will have a milliamp range.
Safety Car
Joined: Sep 2005
Posts: 4,215
Likes: 643
From: Orange County Ca
Check the easy stuff first. Check all the electrical connections to make sure they are clean and tight, and check that the belt is snug also. Sounds like you could use a repair manual, available at all the parts stores for $15-$20.
Melting Slicks
Joined: Dec 2000
Posts: 3,407
Likes: 2
From: Carmichael CA
Let's step back a bit. Why did you suspect that your alternator was not working? Did your battery die? Did you test your battery and it was OK? What started your alternator problem? And, you indicate in the title of your thread, "not again" so what happened before and what did you do to stop it?
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Burning Brakes
Joined: Jan 2006
Posts: 1,154
Likes: 1
From: St Augustine FL
Most common thing is the two wire connection that plugs into the altenator. I am assuming that the 77 vette has the same connection as my 82. The wires at that plug end become very brittle and are subject to corrosion. You can buy a new plug at Napa for under $3.00. that was what was wrong with mine. Also check the wires on the termanls on the back of the alternator and make sure the terminal nuts are nice and tight. Loose connections create arcs which creates heat a lot of heat and heat destroys wiring.
Pro
Joined: Sep 2002
Posts: 620
Likes: 2
From: San Antonio TX
Originally Posted by Nick6444
Hi I have a 77 vett, and my altinator suddnly stoped working. I took it to napa and they said it was fine. What should i do?
Just because you can pull 12-16VDC from it doesn't mean it's able to do it under load.
Get a second opinion!
Oh yeah, by the way, don't worry about the spelling.
Sheez you guys, get on some college english professor forum if you have such a need to slam a fellow corvette owners spelling mistakes.
Racer
Joined: Jul 2006
Posts: 337
Likes: 10
What is the function of the two pole connector. I think one terminal is for "alternator" light....or volt meter in center cluster.? I can see mine has been spliced at some time....and I am wondering if this could be why gauge is not working. Gauge and printed circuit / connector test OK.
Burning Brakes
Joined: Aug 2005
Posts: 1,126
Likes: 0
From: Hudson Falls, N.Y. 76 Vette Modified L-48
Originally Posted by Rockn-Roll
Let's step back a bit. Why did you suspect that your alternator was not working? Did your battery die? Did you test your battery and it was OK? What started your alternator problem? And, you indicate in the title of your thread, "not again" so what happened before and what did you do to stop it?
More info is needed.....