2018 silverado 5.3l small misfires on multiple cylinders

[Chevyguyltz]

Hey guys I'm having an issue. I'm getting small misfires on multiple cylinders, the misfire counts only reach 4. No check engine lights, no history codes. Changed the plugs and wires but went with msd wires. What can be the cause of this issue?

[CamGTP]

If you ask me, that is normal for these engines at idle.

 

Direct injected engines at a real low idle of 525rpm. Random misfires while even driving with off throttle transitions and the AFM working can happen too.

Edited September 21, 2022 by CamGTP

[GMCustomerService]

On 9/20/2022 at 12:05 PM, Chevyguyltz said:

Hey guys I'm having an issue. I'm getting small misfires on multiple cylinders, the misfire counts only reach 4. No check engine lights, no history codes. Changed the plugs and wires but went with msd wires. What can be the cause of this issue?

This is certainly not what we like to hear, Chevyguyltz.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your truck. To do so, please send an email to [email protected] with ATTN: Chevyguyltz/GM Trucks in the subject line.

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