1978 Chrysler newport. Took the car for an hour drive spent 3+ hours at the drive inn and the hour drive back drive. The car ran fine. Car will only start when boosted now. Runs fine at 14+ volts when running.
Unplugged battery, charged to 99% at night. meter read 12.96 - 12 hours later meter read 12.26. Put in key, turn on without cranking car and voltage instantly drops to 10.9 or 11.2.
Turn off key, voltage climbs back to 12.21 and has been steadily there each time I've tested.
cleaned wires and got a new battery cable terminal as the old one was looking nasty. Still same problem. I don't think its the battery or the alternator, but I could be wrong? I'm still learning as I go. Could it be the voltage regulator or Electronic ignition module? (bolted on the firewall) Im hoping one of you pros can put me in the right direction. thank you.
Unplugged battery, charged to 99% at night. meter read 12.96 - 12 hours later meter read 12.26. Put in key, turn on without cranking car and voltage instantly drops to 10.9 or 11.2.
Turn off key, voltage climbs back to 12.21 and has been steadily there each time I've tested.
cleaned wires and got a new battery cable terminal as the old one was looking nasty. Still same problem. I don't think its the battery or the alternator, but I could be wrong? I'm still learning as I go. Could it be the voltage regulator or Electronic ignition module? (bolted on the firewall) Im hoping one of you pros can put me in the right direction. thank you.