Get a jump and take to any autoparts store for a free diagnosis, they will check the condition of battery (amps) and alt. Output loaded and unloaded.
Make sure you tell them you may need a jump to restart because the engine will have to be shutoff and started to complete the procedure.
A simple test is to use a multimeter, with engine running, connect to battery in DC volt mode. Multimeter should read 13.5-14.5 volts, if less than 13 then alt. Is bad.
Check loaded (high beam lights on, blower motor on) and unloaded (electrical loads off).
Monday, February 9th, 2009 AT 7:14 AM