Starting up my car

Asked by Jan 23, 2017 at 09:55 PM about the 2003 Cadillac DeVille Sedan FWD

Question type: General

I left my key ignition switch on for about 30
minutes car needed a boost got it started drove it
for about am hour turn car of now it won't start
back up

2 Answers


you probably killed the battery for good , they can only take so much . An event like that can be the last straw .


You have to be very careful jumping a Cadillac, especially a Deville, they blow the mains for no apparent reason, so check the main fuses then move onto the rest before doing anything else, if that checks good then get the battery checked, if it tests bad replace it, and get a good battery, preferably a sealed unit but those can be expensive, after it is running, Check the voltage at the battery, if it isn't reading at least 14.2 volts then have the charging system tested just too make sure you didn't burn out the alternator trying to charge a weak or dead battery. DO NOT disconnect a battery cable with the engine running, you can and will cause untold damage to the electronics.

Your Answer:

Cadillac DeVille Experts

  • #1
  • #2
  • #3
View All

Related Models For Sale

Used Cadillac Eldorado
5 listings starting at $3,895
Used Cadillac CTS
14 Great Deals out of 370 listings starting at $3,900
Used Chevrolet Impala
21 Great Deals out of 859 listings starting at $2,894
Used Lincoln Town Car
10 listings starting at $6,495
Used Cadillac Escalade
13 Great Deals out of 520 listings starting at $3,700
Used Ford Mustang
28 Great Deals out of 1,238 listings starting at $3,995
Used Lincoln Continental
3 Great Deals out of 54 listings starting at $46,887
Used Chevrolet Camaro
8 Great Deals out of 936 listings starting at $11,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.