Please help! My daughter's 2000 Deville won't start. Turn switch on dash lights up, turn to start dash goes blank and nothing happens!

Asked by summit1211 Nov 19, 2015 at 08:16 PM about the 2000 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

I was only trying to help daughter by cleaning her car. Left door open
overnight and battery discharged.  No big deal I charge it up. Then it
won't start. Had battery checked at O'Reilly they said it was  good ( its a
2014) but needed charging.  So I charged it again overnight. No
luck.Dash shows 12.4 - 12.6 volts.Two mechanics suggested main
battery cables. I checked all I could find, under back seat and
hood.They were pretty clean but I cleaned again and even removed
ground under seat and underhood (by fusebox ) and ground down to
bare metal.Checked all the fuses (under back seat and hood) and
switched out IGN 1 circuit breakers with others. Idont know what to do,
like I said all I did was let battery go dead and there was no prior
problem. I did put new front brake pads on. Any advice would be
greatly appreciated.

4 Answers

summit1211 answered 9 years ago

Hey johnny and thank you for your serious answer. I did check the ground under back seat and also the one under fuse box to alternator body. I cleaned down to shiny metal. Do you know of another ground or any other suggestions. I also tried another good battery with 850 cca. I am stumped There is water under the back carpet I think from an earlier ac or heater coil leak. Is there any wires under there that could possibly short out? Thanks David

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