Voltage issues

[jonezybones927]

I drive a 2020 5.7 1500 with an E-Torque. The bearing on the e-torque went bad at 77k. Part was on back order until June. I ordered the bearing and rebuilt it myself. Now when I start my truck it reads 14.2-14.7 volts. As soon as I give it heavy acceleration like merging on to a highway. The voltage drops to 12.5 and continues to drop as if the alternator isn’t working, but when I shut the truck off and restart voltage goes back up to 14.6. Happens every time within the first mile of driving. Any thoughts?

 

[puzzlingrufous]

I drive a 2020 5.7 1500 with an E-Torque. The bearing on the e-torque went bad at 77k. Part was on back order until June. I ordered the bearing and rebuilt it myself. Now when I start my truck it reads 14.2-14.7 volts. As soon as I give it heavy acceleration like merging on to a highway. The voltage drops to 12.5 and continues to drop as if the alternator isn’t working, but when I shut the truck off and restart voltage goes back up to 14.6. Happens every time within the first mile of driving. Any thoughts? bitlife

Belt & Tensioner – Ensure proper belt tension and alignment; a slipping belt could cause voltage drops.
Battery Condition – A weak or faulty battery can cause charging inconsistencies.
Voltage Regulator & PCM – The Powertrain Control Module controls alternator output—check for error codes.
Connections & Grounds – Inspect all eTorque and alternator wiring for corrosion or loose connections.