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#2 |
Senior Member
![]() Join Date: Jul 2000
Location: North Texas
Posts: 3,484
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Re: What should voltage reading be while driving?
In a perfect world it would be around 14 volts. But anything down to around 13 is OK. An indication of 12 volts could mean you have a charging problem which could be alternator or poor connection somewhere.
If you have a multimeter, check the voltage across the battery terminals with the engine running, and compare that to what your gauge displays.
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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