View Single Post
Old 07-11-2018, 12:29 PM
snowman22's Avatar
snowman22 snowman22 is offline
Join Date: Jan 2018
Location: SoCal
Posts: 160

Originally Posted by 02greysixer View Post
Are your positive connections good at the pass side battery junction block? Are you measuring voltage on the driver's side battery or pass? The alternator chargeback wire goes directly to the fuse block on n the pass side battery then from there charges the drivers side through the main cable the ties the 2 batteries together that runs along the radiator. I had to replace that cable that runs from drivers to pass. Truck was acting weird wouldn't charge correctly, turned over really slow. I had like a 2 volt drop across that positive cable running along the radiator. Replaced that and all was well.

Sent from my SM-G930P using Tapatalk
The voltage measures the same at both batteries and on the alternator post. The strangest part of all this is that after resetting the system, it seems to function normally for a few drive cycles.
2015.5 LML GMC Denali 3500 SRW 4wd CCLB 100k Miles
Mike L Trans, 4" FlowPro, MBRP Down Pipe, 30" FTE Resonator, S&B Intake, Twin Kennedy Pumps, Bilstein 5100, Poly U/LCA Bushings, Kryptonite Tie Rods, EBC Sport Rotors Yellow Pads, Edge CTS2
Reply With Quote