Check engine light problems

Check engine light
Check engine light: It indicates that there is a failure in the way the engine works, specifically in the exhaust system. When it blinks, the failure is serious.
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Flashing engine light

Chevrolet Silverado 2005 2005 v8 5.3l at  207000 miles
Running rough. Feels like fuel filter. Or pump. Are both in my gas tank? Or could this be a sensor?
Sean from Canada 7 years ago  
SE
13 reports 
Mook from United States 7 years ago
Multiple Misfire if check engine light flashes. Sounds like either worn spark plugs, plugged injectors. Pull the plugs and change them first and wires first to see if it clears it up. If not run fuel injector cleaner thru it
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Engine light comes on at 75 mpg, doesnot run rough

Chevrolet Silverado 2006 pick up  65000 miles
The light comes on at 75 mpd, code P0300, changed wires, air filter, added fuel injector cleaner(twice), runs fine, no change in performance. What else should I do? or not worry about it?
Kurt from United States 8 years ago  
KU
8 reports 

Drives for an hour,

Chevrolet Silverado 2003 5.3 1500 390 miles
Can only drive for an hour, then it shuts off, when I let it sit for awhile it starts up again and it's okay
But the same thing happens again
Engine light come on,
Jrdn from Canada 7 years ago  
JR
3 reports 
Andre from Canada 6 years ago
Did you have it fix? My problem was a dirty gas tank... clogging the filter in my tank...
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Diagnostic is not working

Chevrolet Silverado 2002  130000 miles
Water in fuel light and service engine and change oil lights came on tried to plug in diagnostic but there is no power in the port
Armando from United States 5 years ago  
AR
2 reports 

Diagnostic is not working

Chevrolet Silverado 2002  130000 miles
Water in fuel light and service engine and change oil lights came on tried to plug in diagnostic but there is no power in the port
Armando from United States 5 years ago  
AR
1 report 
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