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Stalls soon after startup

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Old Jan 10, 2024 | 6:03 PM
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Default Stalls soon after startup

Hello all, just found this site and looking for some help. I have a 06 Chevy Silverado 4.3 2 door. I replaced the fuel pump a month ago because the sending unit was bad. Truck was running great, but now I have a new issue. Truck turns on every time, but 5 seconds later it shuts off. It sounds like its running out of gas, slowly dies. Only code on my scanner that is coming up is P0496. Youtube is saying pressure sensor, but its new. Any advice on the issue would be greatly appreciated. Gonna take the bed off tomorrow and start looking for loose wires or visual issues. Thank you, Rigo
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Old Jan 10, 2024 | 6:25 PM
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See "Possible Solutions" here....
https://www.obd-codes.com/p0496
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Old Jan 10, 2024 | 6:45 PM
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Thank you sir. I'll get on it tomorrow and see what she does.
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Old Jan 11, 2024 | 11:27 AM
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Found the problem. Its a loose,/bad wire that goes to the fuel injection harness. I bend the wires by hand and problem goes away. Gotta be shorting out. Ima take it to my dads mechanic to be sure.



Last edited by Rigog007; Jan 11, 2024 at 11:49 AM.
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Old Jan 11, 2024 | 4:10 PM
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nice sleuthing 👍
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Old Jan 11, 2024 | 4:50 PM
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Mr. Joe you happen to know the exact name of this part? Can't find it for the life of me at all the online part stores. Worse case scenario, I'll just go to the dealership with my vin#.
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Old Jan 11, 2024 | 5:06 PM
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that appears to be part of the engine harness, which I would avoid replacing (costly and problematic).
I would repair it by splicing in new wire.
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Old Jan 11, 2024 | 7:33 PM
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Thank you
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Old Jan 12, 2024 | 12:11 PM
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Originally Posted by mountainmanjoe
that appears to be part of the engine harness, which I would avoid replacing (costly and problematic).
I would repair it by splicing in new wire.
Hello; My problem last spring when mice chewed on my engine harness was no new replacement harnesses could be found. Might not be the same for an 06.
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Old Jan 12, 2024 | 3:41 PM
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Im leaning towards cutting and splicing, soldering as per Mr. Joes advice. But I'll definitely look at a harness and see where its at in price and availability. Thanks for the info SK47
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