LB7 removed Fleece Allilocker, no start now.
- Thread starter Cornell
- Start date
According to the log
it's commanding a ton of fuel. It should be running. Fuel pressure looks good in fuel rate is way up.
Nick and Bob think possible bad fuel.
Here's a video of the truck after it started with no TCM. Still unsure why the TCM would mess with it starting. As previously stated the truck ran perfectly fine an hour prior to is not starting. Drove it like 5miles parked it turned it off, started it again drove it into the shop and then disconnected Ali locker which at this point has nothing to do with it.
TCM probably got grounded it accidentally but now it idles extremely rough. Even tho the log shows rail pressure and everything normal.
https://vimeo.com/155880329
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it's commanding a ton of fuel. It should be running. Fuel pressure looks good in fuel rate is way up.
Nick and Bob think possible bad fuel.
Here's a video of the truck after it started with no TCM. Still unsure why the TCM would mess with it starting. As previously stated the truck ran perfectly fine an hour prior to is not starting. Drove it like 5miles parked it turned it off, started it again drove it into the shop and then disconnected Ali locker which at this point has nothing to do with it.
TCM probably got grounded it accidentally but now it idles extremely rough. Even tho the log shows rail pressure and everything normal.
https://vimeo.com/155880329
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Another video of engine after got it started without TCM
Truck sounds like complete ass.
https://vimeo.com/155880874
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Truck sounds like complete ass.
https://vimeo.com/155880874
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That's what I was thinking if it's got a bunch of white smoke like that. Injector hung
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Can you watch balance rates while its idling. That might point to a hung injector?
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I spoke with Nick he doesn't believe it's an injector. I'm gonna try new fuel in it and see what it does and if nothing try another ficm even tho Nick said it would throw codes which it's not. He said he doesn't believe it's an injectors because it would show a cylinder miss fire.
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That's sorta how one sounds with timing outta whack too. But, it's not hard to watch the injectors. It's worth the minimal effort just to see what they're doing?
Before you drain the fuel tank, can't you unhook the feed line from the tank to the lift pump and stick it in a can of fresh/clean fuel and try starting it with that just to see before you go through the trouble of draining tank?
Before you drain the fuel tank, can't you unhook the feed line from the tank to the lift pump and stick it in a can of fresh/clean fuel and try starting it with that just to see before you go through the trouble of draining tank?
What is timing doing in the log??? I have seen one once before act like this and the tone ring on the crank was loose what about cam crank sync???
What would cause the timing to change it was fine on Tuesday and fine back in sept&oct. no issues with it until now. I drove it all the way till the trans was dropped and drove it last week and on Tuesday no issues.
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True the one i worked on drove home shut off and the next morning would not start all the time and when it did it would run ruff and smoke like an old mechanical truck that the timing was out of only reason found it was cam and crank wouldnt always sync so i pulled the crank sensor and the tone ring was loose tore it apart tighten back up with a dab of blue lock tight and it been fine ever since just saying it might be a possibility
Then put the allilocker back on and see if it runs good again lol
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Fuel timing could change if you did something to a temp sensor etc
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