
2008 Chevrolet Silverado 1500 LTZ 5.3L Stumbles at startup
I have cleaned the mass airflow sensor and the throttle body and relearned idle speed. Also when I replaced the spark plugs they were a little blackened like it is running to rich. When I look at the live data the fuel trims look normal. Also the act and e...
FIX posted 5/24/2022
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)21 Replies Received(Hide Replies)21 Replies Received
|
Message Closed w/FIX
|
VIN | 1GCEC19018 |
Engine | 5.3 L / 8 cyl / FLEX |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | Stumbles at Startup |
Occurs | Hot, Intermittently, When Starting. |
Message Closed w/FIX
Vehicle Data
2008 Chevrolet Silverado 1500 LTZ
VIN | 1GCEC19018 |
Engine | 5.3 L / 8 cyl / FLEX |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / SEFI |
Emissions | OBD-II Compliant |
Symptoms | Stumbles at Startup |
Occurs | Hot, Intermittently, When Starting. |