12 Silverado Hard Start/Stalls - Fuel Composition

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Customer states 2012 Silverado 5.3L is hard to start or starts and dies. Fuel trim data is not making sense. See the effects of letting the original problem go for too long. Code P0101, P0172, P0174.
AI generated NPC Bot talks to himself for extended time while sitting in truck.
Upload did not render in full 4K quality.....may have to re upload this one.
#mechanic #cars

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Опубликовано:

4 мар 2024

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Комментарии : 21

@DadsGarageDiagnosticSpecialist 4 месяца назад

I may have to repost this one...for some reason it did not render in full 4K qualty.

@johnbolger7124 4 месяца назад

Excellent Video. That is some good troubleshooting and your logic is spot on. I have the exact same problem on a 2012 Silverado with a 5.3L that I just bought and the fuel composition is stuck at 80 percent alcohol. I cleaned the Mass Air Flow sensor and filled it from empty with fresh fuel but the comp appears to be stuck at 80. I just have a simple reader that can't reset the comp. Getting a new scan tool is probably next on the list.

@DadsGarageDiagnosticSpecialist 4 месяца назад

Thank you very much! The algorithm is designed to relearn the fuel composition at every refueling so if you run the tank empty then fill it, the fuel composition should relearn by itself. Give that a try.

@danielb-c9100 4 месяца назад

By the way, the Bora sport tune exhaust is basically the gm Performance exhaust back in the day.

@DadsGarageDiagnosticSpecialist 4 месяца назад

Yeah I installed a GM Borla kit a time or two in the last few years too.

@danielb-c9100 3 месяца назад

The seats are brand new

@DadsGarageDiagnosticSpecialist 3 месяца назад

Sometimes I see some real nice ones. I just saw a beautiful red single cab with low miles. Looked like it spent its whole life inside a heated garage and always been washed and waxed. Thanks.

@danielb-c9100 3 месяца назад

What about the Dashboard.

@DadsGarageDiagnosticSpecialist 3 месяца назад

@danielb-c9100 no cracks

@manoramachandran9192 4 месяца назад

❤❤❤❤❤❤❤

@DadsGarageDiagnosticSpecialist 4 месяца назад

Thanks!

@danielb-c9100 4 месяца назад

Imperial blue metallic.

@DadsGarageDiagnosticSpecialist 4 месяца назад

Is that the same color as your truck? Thanks for the comment Daniel.

@danielb-c9100 4 месяца назад

No it Dark blue metallic.

@danielb-c9100 4 месяца назад

What is the headlight wiring harness? Part number with the fog white that goes to the fuse box

@DadsGarageDiagnosticSpecialist 4 месяца назад

@@danielb-c9100 I was thinking of you when I posted this one. Not sure of the part number. It’s probably discontinued anyway because the vehicle is so old.

@danielb-c9100 4 месяца назад

I can probably get it from a junkyard but do I need to put the vehicle under the wood or crawl underneath it?

@danielb-c9100 4 месяца назад

My truck is kind of weird my front fingers roll. Okay, my rockers are okay. My cap corners are fine my tailgates even o k but the bed is shot

@DadsGarageDiagnosticSpecialist 4 месяца назад

Is it a 1500 or 2500? Flat bed time?

@danielb-c9100 4 месяца назад

Fifteen hundred bed

@DadsGarageDiagnosticSpecialist 4 месяца назад

@@danielb-c9100 I would probably try to find a different bed then. The bed on my 2500 is smashed in the corner with no tailgate so I might replace it if I can find a deal or may end up building a flatbed.