Cold start battery issue...Maybe - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 11-09-2013, 02:38 PM Thread Starter Rookie
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Cold start battery issue...Maybe

Hi guys,

I have been lurking here for a bit, gleaming knowledge and trying to search before I ask. I am now at a stopping point and about to take the truck back in to be worked on. It is a F250 King Ranch 2005 161XXX miles.

Before I had Hot start issues, after some reading I believed the repair work was beyond me so I took it in. O-rings, HPOP seal and several other items and she was was running like a champ. 2 weeks later I am having cold start issues. I get about 3 two second cranks and my battery is starting to sputter and I can't get the truck started without a jump.

I charged the batteries hoping that would fix it, but nope, I have been plugging in the engine heater, and that helps it (starts right up). Well yesterday left it at the station for 12 hours, cold front came in, and she wouldn't start without a jump. Took it to Auto Zone... I know not the best choice, and they said my starter was pulling to many amps but batteries were good. I pulled the starter and it is showing good now.

What do I do next? Glow plugs? Should my batteries go belly up after only a few cranks? This is my first diesel so I am learning alot with it right now. Also I have one battery that showed charges of 100% and the other 34% BUT showed good? Maybe the other battery is not being used?
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post #2 of 6 Old 11-09-2013, 02:43 PM
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Glow plug relay. I have a 7.3 and had almost the same problem. With the new relay, $70, no issues at all....starts right up on the coldest mornings.

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post #3 of 6 Old 11-09-2013, 04:10 PM
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Did they load test the batteries individually or with both of them connected?

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post #4 of 6 Old 11-09-2013, 05:14 PM
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Mine did the same thing last year and it was a loose terminal connection. Check all the post on your battery, make sure you can not move them with force applied. A loose connection can cause an over-current condition. Keep us posted.

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post #5 of 6 Old 11-09-2013, 09:25 PM Thread Starter Rookie
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Yes I when I pulled the Starter I also pulled the batteries so they could be tested individually. All was good. I will look into the Glow plug relay, and tomorrow morning when I put the starter back in I will check all my connections, try and do a good once over on the cables.
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post #6 of 6 Old 11-10-2013, 08:35 AM Rookie
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Mine did the same thing, ended up being the ficm. It would start sometimes, other times it needed a jump. Batteries were good.

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