Question about 2001 Ford F350 Super Duty SuperCab

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2001 F350 Charging problems

My 2001 F350 quit starting when the batteries went dead. (thought they were old). Replaced the Batts- and then had the alternator tested. Diod was bad. Replaced the alt-. Problems were gone for about 2 weeks. Suddenly the batts were dead again and the batt light came on. Same problem. Is there something else that could be kiling the alt-. Has there been any recalls on this issue with alternators and batteries???

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New batteries and alternator still wont start 2000 F350 ford dually

Posted on Jun 01, 2012

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Actually the only thing i can recomend is to have the alternator replace again for warranty and before starting the truck charge the batteries very well with a baterie charger make sure to charge them individually because with a low batterie the alternator has to put a lot of load and might burnt again
specially with dual batterie.

Posted on Jun 03, 2008

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Replace seilnoid / if on top of starter as one unit replace the unit before that though tap.with hammerwhile trying to start it if fires up then it's bad not the battery when threw same thing spent slot of time and money just to figure it out tap starter while trying to start should fire up then replace check that wires are tight

Posted on Feb 21, 2013

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Have a 2001 F350 7.3 - 3 weeks ago drove it and let set for an hour came out and was completely dead - no radio, lights, nothing. Tried jump starting ended up putting in 2 new batteries. Did the same...

Have the charging system checked. Autozone, Advance, and Oreilys will do it free. Check Diodes.

Some production years had a weird problem. Its worthy of mention but since you replaced the batteries, it should not apply. Watch your Charge, Voltmeter as sometimes the Alternator will disconnect automatically WHILE DRIVING at even 70mph. The system monitors your vehicle for PARASITIC drains and automatically disconnects the power connection as part of a Battery Saver.

So if Battery levels fall, causing the Alternator to work too hard to recharge a drained system, it will disconnect the charging circuit. Even if if you used a boost to jump the truck, it will charge for maybe 5 minutes and then disconnect.

Now for the battery to drain in 1 hour, you should have a glowing part. About the only thing which could drain that much power is a Rear window defroster or a stuck timer or power relay on the glowplug system.

The glowplugs could be remaining energized and you would not know it. A grounding starter could drain the system. Have a draw test performed.

Most anything else would break a fuse or burn a wiring connection.

Clean the Negative battery cable and if mounted to the block, check the engine to frame strap.

Please rate my info.

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I just went thru same thing with my 2003 f-350 diesel. I hooked up my horse Trailor and drove to Von's parked went in came back out and truck was dead. I tried to jump it didn't work. Then over next two hours two tow truck Drivers hooked up to both batteries full power charge direct to my truck and would not start.
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Have the vehicle taken to one of many places that will test the Alternator output etc--narrow it down first without replacing that.

Voltage may drop enough to prevent starting without triggering the low voltage issue.

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Need more info - How old is battery? can you jump start? etc. If you can jump start it, take it to a local parts store like Autozone, Advance, etc and have them test your charging system and battery. Note if battery went dead, you're going to need your code to re-activate your factory radio.

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