03 seville sls won't turn over when jumping; car has been sitting for 6 months.

Asked by Sep 30, 2014 at 03:33 AM about the 2003 Cadillac Seville SLS

Question type: Maintenance & Repair

So I am trying to buy this car from a
friend. The vehicle has been sitting
for 6 months, while the owner was
out of the country. We hooked up the
cables directly to the battery under
the rear bench seat. Some lights and
electronics came on. When I tried to
start the car, only the starter solenoid
would click, the engine would not
turn over.  We let the battery sit for
about ten minutes, still hooked up to
the running vehicle, same result. Is
this an anti-theft issue, or do you
think the battery needs to be
charged fully after sitting that length
of time?

Thanks

4 Answers

36,015

Probably a little of both. I am thinking that you are going to have to get a new battery. When you replace the battery be sure to get the key and put it in your pocket. The last place you want the key when you change the battery is in the ignition.

1 of 1 people found this helpful.
69,615

Agree,

So I brought a fully charged, 860 cold-cranking amp battery with me when I returned today. This time, when the ignition was turned to the ON position, more things started happening, like the radio turned ok n, ALL the lights in the dash turned on, the steering wheel moved. These are all things that did not happen before when jumping with the old battery. Despite all this, the engine STILL did not turn over, just the clicking solenoid again. No security light it anti theft indicator was in the dash at all. This doesn't sound like an anti theft issue, but could it be a seized engine? It's only been sitting for 6 months, and the previous owner just had the head gasket replaces right before parking it. According to the info panel on the dash, the oil life was at 74%, although in not sure how accurate or relevant that information is. What do you guys think? Thanks in advance.

36,015

The last thing left is the starter. It seems like you have done everything else.

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