My 2008 dodge magnum will not start.

Asked by Ray Aug 23, 2014 at 11:25 AM about the 2008 Dodge Magnum SXT RWD

Question type: Maintenance & Repair

Hey,  so I have a problem.  My magnum will
not start.  About a month ago, I left my key
in the car, not running but in the ignition
with the radio running over night. The next
day, it was completely dead. I bought a
brand new battery after jumping it and it
dieing again. After installing the battery and
driving to the gas station, my speedometer
would jump around and various dash lights
would cone on like my brake light,  engine,
tire pressure. Pretty much every light that
could come on did. After a few minutes of
driving, it would act normal. Fast forward a
few weeks, my car died again. This time I
sent it to a mechanic who checked my
alternator and battery, everythING checked
out fine. Saying he could not find anything
that would cause the intermittent problems.
Last night, my car died again. So I had it
jumped and the whole drive home all my
dash lights were on, I couldn't turn on my
headlights without using my high beams,
my speedometer was stuck and it sounded
like I was driving in the wrong gear. Sorry
for the long message, but u wanted to paint
the entire picture.

1 Answer

8,375

The gauges will go crazy when the voltage is too low, so that's more of a side-effect than the problem. It sounds like the car is now in "limp" mode, so it won't go past 50 mph and probably stuck in 3rd gear besides. Running the battery dead doesn't usually cause all that. I would have that mechanic double-check your charging system. Everything you describe can be a result of too low voltage.

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