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Low voltage after header install.

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Old Aug 23, 2020 | 04:18 PM
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QuiksilvrZ's Avatar
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Default Low voltage after header install.

Gauge reads between 11.5 and 12.5 roughly for the past couple days. No issues starting. I had a meter on the battery last night at idle that showed 13.5 while the gauge read 13.0 but it hasn't been that high since. The ground wires near the oil filter are one and the starter wires went back on the same way they came off. Not sure what's going on here. Before the headers even the car never really read more than 13.7
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Old Aug 30, 2020 | 06:24 PM
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Originally Posted by QuiksilvrZ
Gauge reads between 11.5 and 12.5 roughly for the past couple days. No issues starting. I had a meter on the battery last night at idle that showed 13.5 while the gauge read 13.0 but it hasn't been that high since. The ground wires near the oil filter are one and the starter wires went back on the same way they came off. Not sure what's going on here. Before the headers even the car never really read more than 13.7
Power for the Alternator travels from underhood fuse panel, through the starter solenoid to the Alt. With the headers, you probably cooked the connections at the starter solenoid. What I did after header install is to run a separate 6 guage wire from the B+ terminal of the Alt around the back to the engine directly to the positive terminal of the battery, installing a 175 amp fuse link(available at Advance) between the new wire and the B+ of the battery. Fixed my low voltage and since you have adequate voltage for the starter, it should be alright without addressing the solenoid connections, which are a pain, as you probably know. Good luck!
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