what all should I check on my 2003 chrysler sebring and it cranks and fires but wont start.
the car has been starting fine with no
problem until the first real cold morning (4
degrees) I'm not sure if that is relevant
because it's obviously not the alternator or
battery. Car had plenty of antifreeze and is
serviced regular. It may be time for plugs
It could be a sensor misread, so the ECM is seeing a fully warmed up engine so it is not adjusting the fuel accordingly, a live data scan is the only way to check this problem, but if it hasn't been tuned up like it should be then do that first, plugs, air and fuel filters, PCV valve.
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