No start after engine has been running
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Junior User
Joined: Aug 2004
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No start after engine has been running
Early build 6.0 (2003) starts fine in CT winter weather as long as its plugged in, HOWEVER, will not start after engine has been running! It just started doing this a week or so ago and after plowing all day yesterday, it just wont start after the engine is up to operating temp. It will start on a shot of ether but I only did that once to get it home.... Other than that, the truck runs great! I changed the oil today, checked the ficm (48V) and the injectors were all done less than a year ago. The only code I get every once in a while is Cyl 1 injector circuit low and that goes away on its own. I'm not really sure where to start.....thanks guys
Laughing Gas
Joined: Oct 2012
Posts: 794
Likes: 1
From: Ontario
Regardless, you have a HPO leak if it only won't start when hot. Being an 03', i will always lean towards the HPOP being bad.
Although, the only 03 pump ive personally seen fail wouldn't start at all, hot or cold. But that is the problem area in the older trucks
Although, the only 03 pump ive personally seen fail wouldn't start at all, hot or cold. But that is the problem area in the older trucks
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Junior User
Joined: Aug 2004
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Yea, from the research I've been doing, that's the direction I'm leaning as well. I was hoping it was a sensor or something....I'll wait for my scanner to give me some readings, hopefully I can nail it down from there.
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