TRNW-2: MISCELLANEOUS, 2018 Silverado 5.3 with a misfire

[art landeck]

lifters collapse order a fuel rail puller now need that to remove the 
fuel rail buy a good one cheap ones bend

Tod Chretien via trnw2 wrote on 6/7/2025 9:52 PM:
> TRNW Technical Discussion Forum
> *Post ID:* 21395 
> <https://www.trnw.net/trnw/forum_thread.php?post_id=21395&forum=2>
> *Date:* Sat Jun 7 18:52:40 PDT 2025
> *Subject:* MISCELLANEOUS, 2018 Silverado 5.3 with a misfire
> This isn’t a transmission problem so please forgive me for that. I 
> just bought a 2018 Silverado with 110K. It started making a light 
> tapping noise on moderate to heavy acceleration. About 3 days later I 
> had to punch it to beat some oncoming traffic and it started misfiring 
> severely. The #1 cylinder is counting misfires so I pulled the spark 
> plug and they definitely haven’t been replaced yet. Hoping for the 
> best I replaced the spark plug but it’s still counting up on #1. I 
> swapped the coil with #3 but it didn’t change. I hear the lifters on 
> these AFM engines have issues. Does anyone know what goes wrong with 
> the lifters and how to diagnose it? Would it have no compression? 
> Sorry for the dumb question but book time is over 20 hours and I don’t 
> want to do the wrong thing. Any help or insight would be greatly 
> appreciated.
>
> Tod Chretien
> Ralph's Transmission
> Modesto, California USA
> tod at trnw.net
>
>
>
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