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12/05/2021 1:48 pm
Topic starter
Hey all,
I have a 5.3L V8 GMC Sierra 1500 that starts up fine everything is works well. However, when I am at idle after approximately 10-15 seconds there is a slight shutter or vibration. It's usually very small but sometimes not so small. What could this be? Fuel Pump? O2 Sensor?
What is the mileage?
2 Answers
1
12/05/2021 2:39 pm
do you have any misfiring? trouble lights?
check everything on the belt drive.
check your motor mounts
No. No alerts or misfires.
1
12/05/2021 3:14 pm
Clean the MAF sensor.
