Question about 2003 Ford F250 Super Duty Crew Cab

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Ford f250 superduty turbo diesel 7.3L Will not crank

Ford F250 Superduty turbo diesel 7.3L initially was having trouble cranking in the cold weather...I would have to plug it up every night...then I replaced the glowplug relay switch...seemed to help...Few days later problem returned..I bought a new battery...didn't fix the problem of not cranking in the cold...I replaced the alternator...first truck fired right up..then drove a few miles..shut it off ...would not restart..got a jump off and started home...then went crazy lost the dash, all lights..radio everything..barely coasted into my driveway...Now I can't even get it to crank...batteries both brand new read low as if they aren't charging..What should I do next?

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Charge the batteries. take a Reading to make sure that you are getting almost 14v to both batteries. If it is not charging then take the alternator back off and have them check it. you might have bought a bad one. There is a way to test the glow plus with out taking them out. ( Take a piece of wire long enough to reach all the glow plugs from the battery. unplug the glow plug wire.If you touch the end of the glow plug with the hot wire it should make a little spark. if no spark then the glow plug is bad. do this to each one, but one at a time)

Posted on Mar 02, 2009

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