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General 6.7 Discussion (2011-2016) General 6.7 Discussion

Thread: Symptoms of fuel bad fuel pump Reply to Thread
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  Topic Review (Newest First)
12-04-2019 03:07 PM
Benbo30 Have you figured out what the issue is ? I have same problem with my truck and same code came up
09-19-2019 06:36 PM
FiEnD
Quote:
Originally Posted by lowmpg View Post
Unusual for a 6.7 and I would certainly not try it with a 10k motor setup.
I forgot to add mileage. 363k

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09-19-2019 05:48 PM
lowmpg
Quote:
Originally Posted by FiEnD View Post
My truck sat for 2 years. I kid you not. When I bought it I changed the oil and fuel filters and it started right up with the old fuel in the tank. 2 months ain't nothing at all.

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Unusual for a 6.7 and I would certainly not try it with a 10k motor setup.
09-19-2019 01:26 PM
FiEnD
Quote:
Originally Posted by lowmpg View Post
Sat for 2 months? You probably have gummed up fuel and not charge. Change the fuel filters and fill the tank
My truck sat for 2 years. I kid you not. When I bought it I changed the oil and fuel filters and it started right up with the old fuel in the tank. 2 months ain't nothing at all.

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09-19-2019 08:31 AM
jman37
Quote:
Originally Posted by Bluwaterbrew84 View Post
Pretty confident that everything was done correctly.
How? Did you do it? Or pay someone else that "should know what they're doing." If you didn't do it, it takes 10 seconds to crawl under and see if it's at the "click" spot, or even open it up and make sure the gasket is fine.

And I doubt it's your battery, your batteries are probably on their way out and that's why it's dimming.
09-19-2019 08:16 AM
james2488 I know after changing fuel filters I usually cycle the fuel pump a good number of times to try and prime everything back up (I even pre-fill the oil filter from my 7.3 habits) and it cranks about .5 seconds longer than normal operation.
Does your scan tool have any datalog streaming? May be worth while to check some pressures to see if it's getting what it needs when cranking.
Also, newer vehicles hate sitting. I left mine sit for about a month and both batteries were dead (brought them back from 4V lol) and have been fine since. If I don't drive it at least once a week I'll let the remote start run for 15 minutes to keep her up and fresh. My 7.3 sits for much longer (and is a manual so not remoting it) but has some big Optima deep cycle batteries in place and those things are beasts (started at -30F, never plug it in, to see if it was not gelled or would warm up, gelled and died 30 seconds later, 6.7 was gelled and would not supply enough fuel past idle), they are way to tall for the 6.7 though
09-17-2019 04:33 PM
Bluwaterbrew84
Quote:
Originally Posted by lowmpg View Post
Make sure you tightened it correctly, make certain you have the green washer properly installed
Pretty confident that everything was done correctly.
09-17-2019 04:33 PM
Bluwaterbrew84 Also after trying to crank a hand full of times and doing the ke on key off thing a couple of times I noticed the dash lights dimming the last time i tried to crank. Could it be a battery issue after all?
09-17-2019 04:31 PM
lowmpg
Quote:
Originally Posted by Bluwaterbrew84 View Post
Quote:
Originally Posted by lowmpg View Post
Stand by my earlier post, change your fuel filter and tighten it.

https://youtu.be/ipmRgS4DcKA
Just changed the fuel filters because they needed it anyway.* Still no dice.
Make sure you tightened it correctly, make certain you have the green washer properly installed
09-17-2019 04:28 PM
Bluwaterbrew84
Quote:
Originally Posted by lowmpg View Post
Stand by my earlier post, change your fuel filter and tighten it.

https://youtu.be/ipmRgS4DcKA
Just changed the fuel filters because they needed it anyway.* Still no dice.
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