CNN: Some GM truck owners will pay more at the pump because of a computer chip shortage

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15/03/2021 3:57 pm

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“GM said Monday it will build some versions of the Chevrolet Silverado and the GMC Sierra without a fuel management module that improves mileage by about 1 mile per gallon.”

https://apple.news/A09eqwNLrSsmnQW1ylRpNBA

Satter

(@satter)

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15/03/2021 4:14 pm

Quick. Buy them before they find more chips.

MountainManJoe

(@imperator)

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Good for long term resale!

By Dad2LM2 15/03/2021 5:55 pm

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15/03/2021 5:37 pm

This means the cylinder deactivation is disabled!

https://gmauthority.com/blog/2021/03/chevy-silverado-gmc-sierra-drop-fuel-management-due-to-chip-shortage/

Whatchamacallit

(@daywalker)

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15/03/2021 6:03 pm

"GM said Monday it will build some versions of the Chevrolet Silverado and the GMC Sierra without a fuel management module that improves mileage by about 1 mile per gallon.

Unfortunately for buyers, even once the chips are available, GM will not be able to retrofit the engines with the missing fuel management module. So the decrease in mileage, to about 16 miles per gallon from 17, will be permanent."

Wait, so the trucks are not going to have cylinder deactivation like @daywalker said, which drops fuel mileage by 1mpg, but the chips give a 1mpg increase??? So a net fuel economy increase of nothing?

What is going on in that corporation

Kerem

(@kerem)

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what are you talking about? lol

By MountainManJoe 15/03/2021 6:05 pm

are you sure you're an honors student?

By MountainManJoe 15/03/2021 6:11 pm

Nevermind I guess brain is overcomplicated because of math class.

You would be too if you had to deal with this every day:

https://qph.fs.quoracdn.net/main-qimg-cee30b81333a1f4a84d28ae4fa3821f7

By Kerem 15/03/2021 6:12 pm

The AFM/DFM hardware (cams/lifters) is still intact but since the software won’t be able to deactivate the cylinders you lose 1 mpg. That’s all. If you want that 1 mpg back, you would need the module which is an electronic module with circuits inside (and a chip which is like the brains of that module).

By Whatchamacallit 15/03/2021 6:12 pm