Alt?

[pumpkinhead]

So here's the story, I left for work and all was fine. stopped at the gas station, and when I started the car back up the central warning light came on along with the OXS light and the alt light. and the gauge was only reading at about 9 volts, it usually reads at about 13, so am I right to think the alt. went south? My car is an 82, any other suggestions ?

[Maleficio]

Use a multimeter to check the charging voltage while running.

[Mrmerlin]

check the 14 pin connector under the hood maybe its corroded and the alternator isnt charging
the exciter wire goes through the 14 pin

[tychain99]

mine did the same thing as my alternator was dying... oxs sensor and stop lamp. It was a brand new battery, so i didnt consider it was the alt until it died out on me . but I would listen to those guys before your deal with pulling that thing off. SUCH A PAIN . that alt weighs like 30 pounds and if you dont have a lift or jack stands you will want to cry ...

[john 928]

just changed had my alt checked and had a similar problem gauge was reading 9v but when i checked it with a charging meter it read 13 1/2 volts. i found out theres a resistor in the back of the cluster that works the gauge. thats whats wrong. i have a 79 5sp im not sure if there the same set up

[MPDano]

Ugh. Shoulda checked voltage at the front post first before buying another Alt. You gotta spare now.