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1997 Chevrolet S-10 Base Reg Cab 108.3 WB

1997 Chevrolet S-10
Trim Info:
Rear Wheel Drive, Reg Cab 6' Fleetside
23 mpg city / 30 mpg hwy
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October 13, 2012, 10:45 am

David M
 

Question: Why does my trucks voltage drop?

Whenever i'm going at a low speed through my neighborhood, usual around 20-25, I use second and third gear. But lately my voltage has been dropping from roughly 14V to 11.8V when I drop it out of third so I can just cruise. This causes my lights to go dim and my cars overall power to drop noticeably.So far the voltage has been able to bring itself back up to 14 after a few seconds. Any ideas? Ive been trying to think of what might be causing this but I've got nothing.


October 17, 2012, 11:16 am

Elizabeth K
Expert Mechanic

The first thing that comes to mind is your drive belt could be slipping. But any weakness in your charging system would cause that symptom. Testing your overall charging system is a good idea, and many auto parts stores will do that for free.


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