WHY WON`T CAR START WHEN BATTERY VOLTS READ 12 VOLTS OK ON 2001 CADILLAC DTS BUT WILL START WHEN VOLTS ARE 14V OR MORE
Dec 21, 2010 at 7:03 PM
STARTING
MOUZONER05
- MEMBER
- 2 POSTS
What does it do when it won't start, does it crank and not start, or not crank? Is the voltage being read on the info center, and how are you getting it to 14 volts, by a charger?
Dec 21, 2010 at 9:48 PM
WON`T CRANK DOES`NT MAKE NO NOISE SILENT AND IT READ ON DASH 12 VOLTS OK BUT WHEN IT DOES START IT READ 14 TO 15 VOLTS THATS THE READING AFTER IT START HAD ALTERNATOR AND STARTER TESTED BOTH ARE GOODIE
Dec 30, 2010 at 1:04 PM
That is normal, and indicates the charging system is operating. What you need to determine is if a signal is being sent to the starter. there is a connector at the rear bank side by the power steering pump. The harness comes from the body, and the engine side goes down under the intake. The large purple wire is the starter signal. Check the body side when it won't crank. If there is a signal there when the key is in crank, you need a starter. If there is no signal, then further diagnosis needs to be performed to determine if it is due to theft system, or electrical. The starter signal test can be performed easiest with a 12 volt test lamp to ground.
Jan 8, 2011 at 7:49 PM
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