Slow Start P1670 code - Ford Powerstroke Diesel Forum
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Old 11-02-2007, 05:04 PM
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Slow Start P1670 code

I have a 2001 Excursion. It has been slow to start like a weak battery. The batteries are 2 years old. The alternator shows a charge. After warming up, it is still slow to start. I just recently got a P1670 code. I have no other codes. Any ideas? What do people mean by loose fuses? If so, which fuse?
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Old 11-02-2007, 05:10 PM
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No other codes? None for the cps?
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Old 11-02-2007, 05:14 PM
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Also when you say slow to start do you mean it doens't crank over like it should, or it just takes a while to start?
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Old 11-03-2007, 09:03 AM
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I just reset the code and it did not come back. I also had the batteries checked and they are good.
On the cranking, it turns over slow and takes longer to light off.
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Old 11-03-2007, 09:54 AM
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Hmm with new batteries you might have some resistence in the starting circuit I would check all your battery connections make sure they are tight and no corrosion. Also check your connections on the starter. I guess the next step would be to check for voltage drop.
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Old 11-03-2007, 10:20 AM
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I was having this same issue on my 06 F350 this morning i went out and it wont even turn over!!!
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Old 11-04-2007, 05:10 PM
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Thanks for the help. I cleaned the battery terminals and it lights off fast. Too much corrosion on the coast.
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Old 11-04-2007, 05:12 PM
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Good deal! Glad to hear
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