Battery goes dead randomly
02-20-2017, 12:40 PM
#1
Battery goes dead randomly
I have a 05 F150 5.4 pickup. It has started to not crank up in an unpredictable manner. Has cranked everytime until we had windshield replaced and had blend door actuator replaced by me. Al these repairs happened within 5 days. I put volt meter on battery when it will not crank and it reads from 10.5 volts to another time of 11.5. You can drive it as we have 50 to 200 miles and let it set overnight and it will cranks up. Then you can drive it 100 ft to wash turn off motor and it will not crank up. I took it to Advanced auto and they checked battery, good, alternator, good, and starter, good. When it will not crank the rpm and speedo qauge will shake at lowest setting for 5 or 10 seconds and the cd player cycles like its trying to eject cd and the radio display is confused. Cleaned all connections at battery, no help. Any suggestions on what to check next. Thanks
02-20-2017, 12:42 PM
#2
Moderator
How old is the battery, and what's the temperature outside? Was Advanced Auto able to tell you how many CCA it had?
02-20-2017, 12:44 PM
#3
Senior Member
How old is battery? 10 volts would lead me to say there's a bad cell in that battery, or at least an intermittent short that will make it test/run fine. Might be time to replace.
