Lb7 no start no crank

[edistojon1]

Usually I can add power to the crank fuse with a test light and crank the truck. This fixes the problem for a bit but did it again last night and now my test light is showing me red when trying to add power to crank fuse. This means my crank fuse is somehow a ground. Stumped. Any suggestions

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[edistojon1]

Also ment to add that this is the normal no start no crank scenario. Turn key lights go off and nothing. I have read every forum and replaced about every part there is . Still nothing

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[2004LB7]

Please fill out your signature. What year etc. 01, 04? Makes a difference

First thing I would check is the pins in the large bale connections on the top of the engine. Some may be pushed back and not making contact. This can do weird things with the engine

 

[Awenta]

Lift up the fuse block

Don't think you had a problem to address when you had to power a fuse manually??


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[edistojon1]

Got the signature filled. Yes defiantely knew there was a problem but when the first no start no crank happened i powered fuse and it never did it again....untill now. Now that does nothing

03 chevy 2500 lb7
4"bbrp turbo back exhaust
efi live dsp5
4 door
4x4 LT

 

[edistojon1]

Just a status update I'm sorry for being vague and new to this whole forum idea. But the problem was solved. Ign e fuse was not making contact on the internal connection between the two layers of the fuse block itself. Thank yall for the help and thoughts either way!

03 chevy 2500 lb7-4"mbrp turbo back-efi live dsp5- 4 door-4x4 LT