Question about 2003 Ford F250 Super Duty Crew Cab
It sounds like your preheat system is not working properly on the cold startup. Haynes has a Diesel Engine Repair Manual, part #10330 that will help you correctly diagnose and repair.
Battery volts at 13 is good but a fully charged battery should be close to 14.2. It would be a good idea to get the alternator output checked and a load test done on the batteries.
Hope this helps.
Posted on Jul 12, 2010
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Posted on Jan 02, 2017
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