6.0 PSD labored cranking, battery CCA test OK?

BrianG

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It seems like my 6.0 PSD Excursion just devours batteries. I had them replaced just about 2 years ago, and last week when the temperatures were brutally cold, if I left the truck sitting for 12+ hours, cranking would be extremely labored. The closer I got to 24 hours of sitting, the more likely it was that I would have to jump it, and I did have to a couple of times. Because Friendly Ford put in the batteries while having other work done, and they have a 3 year warranty, I arranged to go back there today about my labored starting issues when it is really cold. They tell me they need to do a charging system test to confirm. Well, $67 later, they tell me that my batteries are checking out in spec for the CCA test and that they would need to do a full diesel diagnostic to the tune of $220 to determine the issue. When I asked the service advisor what else could cause a labored starting problem when it is cold after the truck sits for 1/2 a day, she said that it could be the fuel system, the alternator, geled fuel, starter, or "that it's just cold." She also went on to say that the full diesel diagnostic will not result in anything that would conclude that the batteries are bad and said the starter is getting good power. WTF?! WTF else could cause a labored cranking condition if not the goddamn batteries?!

My stubborn ass is about to buy a CCA battery tester just so I can throw this back in their face because this is ridiculous (and who doesn't like new tools).
 

Outlaw

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Honestly, I'm going to have to agree with them that it's just the cold... My cummins has two late 2016 batteries (napa premium). It was dead for a few days, got it going and it's a labor to start every time. We've had issues starting every 6.0 coming into the shop as well. Just the nature of it.
 

boostedguy05

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welcom to the deezul lyfe!


do you have a block heater?
 
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BrianG

BrianG

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Honestly, I'm going to have to agree with them that it's just the cold... My cummins has two late 2016 batteries (napa premium). It was dead for a few days, got it going and it's a labor to start every time. We've had issues starting every 6.0 coming into the shop as well. Just the nature of it.
In the context of battery replacement, then I would argue that they aren't working as they should or should be expected to and should be replaced. It didn't act like this at all after getting them replaced or at all last winter.
 

GTPpower

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If your batteries are good, it should spin over quick. You can swap over to a 6.4 or 6.7 starter to raise cranking rpm, but it doesn't sound like that's your problem, unless your starter is going bad.

Even at 0 degrees, mine spins over effortlessly after sitting all night.
 

boostedguy05

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It seems like my 6.0 PSD Excursion just devours batteries. I had them replaced just about 2 years ago, and last week when the temperatures were brutally cold, if I left the truck sitting for 12+ hours, cranking would be extremely labored. The closer I got to 24 hours of sitting, the more likely it was that I would have to jump it, and I did have to a couple of times. Because Friendly Ford put in the batteries while having other work done, and they have a 3 year warranty, I arranged to go back there today about my labored starting issues when it is really cold. They tell me they need to do a charging system test to confirm. Well, $67 later, they tell me that my batteries are checking out in spec for the CCA test and that they would need to do a full diesel diagnostic to the tune of $220 to determine the issue. When I asked the service advisor what else could cause a labored starting problem when it is cold after the truck sits for 1/2 a day, she said that it could be the fuel system, the alternator, geled fuel, starter, or "that it's just cold." She also went on to say that the full diesel diagnostic will not result in anything that would conclude that the batteries are bad and said the starter is getting good power. WTF?! WTF else could cause a labored cranking condition if not the goddamn batteries?!

My stubborn ass is about to buy a CCA battery tester just so I can throw this back in their face because this is ridiculous (and who doesn't like new tools).
well, there is your problem. :trump:
 

RICH17

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I have suggested a big three upgrade to rule out any power transfer problems
 

boostedguy05

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did they put in cheap batteries? go to a better battery?
 

DEEZUZ

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Too cold to start, now thats accurate... But too cold to crank and and too cold for the batteries....?


Nei!

Have you looked over your battery cables? Single or dual alternator?

Thoughts on an amp draw test? Excursions love parasitic loads.
 

DEEZUZ

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As suggested, after reconfirming batteries are good, and no parasitic draws... A 6.4 starter will probably help you...

When she does fire, is she smooth or cackling and smoking fuel bad?
 

boostedguy05

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This thread needs cold start vids
[MENTION=653]BrianG[/MENTION]
 
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BrianG

BrianG

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Too cold to start, now thats accurate... But too cold to crank and and too cold for the batteries....?


Nei!

Have you looked over your battery cables? Single or dual alternator?

Thoughts on an amp draw test? Excursions love parasitic loads.
As suggested, after reconfirming batteries are good, and no parasitic draws... A 6.4 starter will probably help you...

When she does fire, is she smooth or cackling and smoking fuel bad?
Have not checked the battery cables at all, nor done a parasitic load test. Dealership seemed to indicate that the starter is getting great power, and the starter is always strong when the batteries are strong. Truck would sit for weeks over the summer and fire up without issue.

When it's really cold outside, it does stutter while cackling a bit before pretty quickly smoothing out (<10s). Almost none of that when the block heater is on as expected. With regards to smoke, nothing excessive I don't feel. It gives a nice white startup plume through the cackling, but nothing crazy.

FWIW, the batteries I had put in 2 years ago replaced batteries that had been put in 3 years prior. FICM was rebuilt when the batteries were replaced 2 years ago when I brought it in for the same starting condition problems as well as really poor running conditions when way cold until it warmed up.
 
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BrianG

BrianG

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This thread needs cold start vids
[MENTION=653]BrianG[/MENTION]
Was thinking the same thing. Too bad it's 80 degrees out all of a sudden. If this heat wave goes away, I'll have to capture a video.
 

Yaj Yak

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we have a few 6.0's at work, some start way better/faster than others...

it really seems like the only significant difference between them typically, is battery selection also.
 
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BrianG

BrianG

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we have a few 6.0's at work, some start way better/faster than others...

it really seems like the only significant difference between them typically, is battery selection also.
Any idea which one seems to perform better?
 

Yaj Yak

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i know who's truck it is, ill have to go look when it's here
 

boostedguy05

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when its that cold, did you get in and just crank it, or turn the key a little to let the fuel pumps prime and all that jazz then crank?
 

RICH17

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when its that cold, did you get in and just crank it, or turn the key a little to let the fuel pumps prime and all that jazz then crank?
He has to let the glow plugs fire for 30 seconds or so





And that gives me an idea. Wonder if they're draining the batteries a lot before start up?
 

RICH17

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Oooorrr just come to my house and we'll do the big three upgrade since i still have cables left over from the Lumina

[MENTION=653]BrianG[/MENTION]
 

DEEZUZ

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Will you cook sous vide
 

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