Misfire??

KDP85 · March 20, 2021

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 · June 11, 2021

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?!