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My Truck Cuts Out!

justin95

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dewfpo Senior Enthusiast

dewfpo

Posted
Posted
My truck cuts out! How do you fix it? Just driving it will cut out for like .5 seconds and then be fine. How do you fix this?

 

 

We'd like to help you Justin, but you gave us almost no data, and since your sig is not filled out, we have no idea what your driving.(year, engine, etc.....)

 

DEWFPO

dewfpo Senior Enthusiast

dewfpo

Posted
Posted
Ha, Oh yea. Its a CC 2002 8.1 2500HD.....

 

A rough guess would be the crankshaft position sensor. Suggest you run a search on it and see what others have to say about it.

 

DEWFPO

tim73 Enthusiast

tim73

Posted
Posted

Either crank sensor(Most likely) like stated or fuel pump. I just went throught this nonsense a few weeks ago. Turned out in my case both were bad.

justin95 Enthusiast

justin95

Posted
  • Author
Posted

Could this be fuel related? The first day I had it, it happenend 4 times. Same day I put some lucas fuel cleaner in it and it hasnt done it since.....

justin95 Enthusiast

justin95

Posted
  • Author
Posted

Im getting no engine codes, but i am getting 2 tranny codes. P1779 - Engine Torque Delivered to TCM signal & P0700 - Transmission Control System malfunction. Anyone know where to get a used TCM for the allison and how you change it if thats the case?

silverado man Senior Enthusiast

silverado man

Posted
Posted

It could possibly be the fuel filter with 111,000 it could possible be the problem. When was the last time you have changed it? You might also try Sea Foam. Do a search on the forum on how to do it.

Draenor Senior Enthusiast

Draenor

Posted
Posted
Im getting no engine codes, but i am getting 2 tranny codes. P1779 - Engine Torque Delivered to TCM signal & P0700 - Transmission Control System malfunction. Anyone know where to get a used TCM for the allison and how you change it if thats the case?

Does the truck only cut out in gear or does it do this also in park or neutral?

justin95 Enthusiast

justin95

Posted
  • Author
Posted
It could possibly be the fuel filter with 111,000 it could possible be the problem. When was the last time you have changed it? You might also try Sea Foam. Do a search on the forum on how to do it.

 

Yea, I want to but I dont really have a place to do it right now. I want to run seafoam too.

justin95 Enthusiast

justin95

Posted
  • Author
Posted
Does the truck only cut out in gear or does it do this also in park or neutral?

 

Well, so far only in D. I dont idle enough to find out if it does it in park.

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