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Engine light and too much air?

DEV1ST8R

By DEV1ST8R
in Troubleshooting & Recalls

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DEV1ST8R Enthusiast

DEV1ST8R

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Took our 2017 Silverado, with 2,200 miles on it, on the first long trip across the state. Everything went without a hitch until day 2 when I was driving on the highway and the engine light came on, engine revved up, and speed dropped to 35 and wouldn’t go any faster. It ran normal, with the engine light lit after I restarted it. Limped it back to the inlaws with no further problems and the following morning the engine light shut off when I topped off the gas tank. Got an OnStar email informing me of an issue with the engine/transmission and to take it in for service within 7 days.

 

Just left the dealership and they said they couldn’t find any trouble codes or problems... In regard to some transmission jittering I’ve noticed on slow to normal acceleration, they said they couldn’t replicate it and suggested I remove my Airaid intake tube because the engine may be getting too much air?!

 

On the bigger problem, my only thought is that it might have something to do with it being the first time I’ve ever ran it down to 1/8th tank of gas. Maybe a contaminant, fuel filter, or sensor glitch...

 

 

swathdiver Senior Enthusiast

swathdiver

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There should have been a code(s) stored in history/memory.  Check for vacuum leaks, loose Airaid and such.

DEV1ST8R Enthusiast

DEV1ST8R

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58 minutes ago, swathdiver said:

There should have been a code(s) stored in history/memory.  Check for vacuum leaks, loose Airaid and such.

That’s what I thought too about the code(s). Good idea, I’ll check all the connections.

JimCost2014 Senior Enthusiast

JimCost2014

Posted
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25 minutes ago, DEV1ST8R said:

That’s what I thought too about the code(s). Good idea, I’ll check all the connections.

Check your filter, if it has too much oil on it, it will mess up the MAF sensor and throw codes and light up the CEL. The oil is sucked into the engine and coats the MAF sensor along the way.

Dr Awesome Enthusiast

Dr Awesome

Posted
Posted

Too much air sounds like they don't know what happened or don't want to spend time investigating it.  Their MO is to get the truck out if the issue isn't obvious or repeatable, they don't make any money on troubleshooting intermittent issues.  I bet they just want you to take out your Airaid so you feel like it was you that caused it and don't ask more questions.  If the truck went into limp mode, there had to be a code, which might have been as simple as a glitch from the MAF sensor or something.

DEV1ST8R Enthusiast

DEV1ST8R

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1 hour ago, JimCost2014 said:

Check your filter, if it has too much oil on it, it will mess up the MAF sensor and throw codes and light up the CEL. The oil is sucked into the engine and coats the MAF sensor along the way.

I’m still using the stock paper filter, so good there. Once that’s used up I’ll go with the Airaid dry filter.

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