Misfire??

[KDP85]

Hey all, so I have a 17 Silverado 5.3. 
33000km 

was driving around yesterday.   Truck was at operating temp and trans temp was at 76  so all was good. 
 

 

it was driving fine, then I got home. And backed into my driveway.  Parked emptied groceries yadda yadda.  5 minutes later realized I had to pull in. Got in, and did just that.   Then 5 minutes later had to run to corner store.  This is when the truck started rough and check engine light started blinking and it was like I had no power.    ( and when I say rough, it was god awful. Like bucking and lurching) Turned around a parked it.  2 hours later drove it 40km and not an issue.   Next morning drive to and from work (7km each way) no issue. 
 

some say it can be the anti theft , or dirty injectors or worse clips or plugs.     Trucks only got 33k 

 

 

 

help?!

Edited March 20, 2021 by KDP85

[Skeeterhawk]

On 3/20/2021 at 4:54 PM, KDP85 said:

Hey all, so I have a 17 Silverado 5.3. 
33000km 

was driving around yesterday.   Truck was at operating temp and trans temp was at 76  so all was good. 
 

 

it was driving fine, then I got home. And backed into my driveway.  Parked emptied groceries yadda yadda.  5 minutes later realized I had to pull in. Got in, and did just that.   Then 5 minutes later had to run to corner store.  This is when the truck started rough and check engine light started blinking and it was like I had no power.    ( and when I say rough, it was god awful. Like bucking and lurching) Turned around a parked it.  2 hours later drove it 40km and not an issue.   Next morning drive to and from work (7km each way) no issue. 
 

some say it can be the anti theft , or dirty injectors or worse clips or plugs.     Trucks only got 33k 

 

 

 

help?!

Did you get it fixed?