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Weird Starting

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Old Sep 18, 2014 | 01:28 PM
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Weird Starting
Truck has been running fine, finally had to put new batteries in, but now having a weird start issue wether cold or hot, sometimes she fires right up, others it seems to need significant more cranking, almost like a gasser that is loaded up, so without driving myself totally nuts I'm gonna shoot for FICM, what else should i test for that might cause this ..??
 
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Old Sep 18, 2014 | 01:34 PM
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Do you have any way to monitor the engine? I have the Torque App on my phone to see pressures and voltage. Any engine codes?
 
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Old Sep 18, 2014 | 01:35 PM
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Did you disconnect the ICP sensor an try to start it?
What's the voltage on the FICM?
 
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Old Sep 18, 2014 | 04:12 PM
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I have a Scan Gauge 2 but was just looking to narrow it down, have not checked anything yet but was going to start with the FICM. I don't think pulling the ICP sensor plug, because it always starts, just takes longer certain times than others. So just wondering what tests to pay more attention to with this issue instead of going thru the whole SG.
 
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Old Sep 18, 2014 | 05:20 PM
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Does it start harder when warm?
 
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Old Sep 18, 2014 | 08:20 PM
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sounds like a starter longer cranking times and faster slower during crank
 
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Old Sep 19, 2014 | 06:37 AM
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Doesn't matter wether cold or hot, and it cranks pretty consistent, so I'm thinking the starter is OK. Something's weird, just wondering if maybe the FICM is getting weak.
 
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Old Sep 21, 2014 | 07:18 AM
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Originally Posted by Mich6.0
sounds like a starter longer cranking times and faster slower during crank
You win, it was the starter, I've had a lot of starters go, but this one just went in a weird way, kinda slowed down, then just stopped , no classic clicking sound ! Well on to a starter search !
 
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Old Sep 21, 2014 | 07:47 AM
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Originally Posted by mtnxtreme800
You win, it was the starter, I've had a lot of starters go, but this one just went in a weird way, kinda slowed down, then just stopped , no classic clicking sound ! Well on to a starter search !
NAPA 3KW starters are the stuff for a superduty.
 
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Old Sep 21, 2014 | 08:16 AM
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Originally Posted by npccpartsman
NAPA 3KW starters are the stuff for a superduty.
Thanks, I'll check it out
 
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