Sputters when first started

2005 GMC YUKON
250,000 MILES • V8 • 4WD • AUTOMATIC
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EZALIAGIRIS
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When I first start the car it sputter and sometimes cuts off. Once it gets going it seems to be okay. I am afraid I will get stranded when it will not start.
Jun 24, 2018 at 7:34 PM
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STRAILER
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Is there a check engine light on? If so lets run the codes to see what comes up.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

If the check engine light is not on I would start with a tune up using all AC Delco parts with a throttle body cleaning. Here is a guide that will help:

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

and

https://www.2carpros.com/articles/throttle-actuator-service

Please run down these guides and report back.

Cheers, Ken
Jun 26, 2018 at 11:57 AM