Loss of all power when starting my 2000 tahoe

Asked by Mrmonkey6 Apr 11, 2020 at 01:30 AM about the 2000 Chevrolet Tahoe LS 4WD

Question type: Maintenance & Repair

Maybe I can get some advice here. I have a 2000 tahoe
with 260k miles. Recently when I go to start it some times
when I turn the key to start all the lights go off no click or
any thing. I have to go out and unplug my battery wait
about 30 seconds and plug it in then it will start. When I get
it running the first Time after it dies my voltage meter
moves alot and at times can go from 14v to 12v or less
then jump up. When I turn it off after this it dies completely
and I have to unplug and try again. New battery less than 6
months old, new alternator went from 105amp to 145 amp
and that isn't more than 6 months old put a new starter in
about 20k miles ago. Any advice on what else to look for.

1 Answer
620

GuruPD8FJ answered 4 years ago

The key switch is one possible or a ground loose somewhere ( on firewall , engine block)

Mark helpful

Your Answer:

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