2005 GMC Other Repair Question
GMC Other Fuel injector Problem
I had one just like that for a GM produced car of that era, a Buick century. Turned out to be an intermittent short in 2 of the fuel injectors, I found it when it acted up and I unplugged #2 injector and it started right up. I then replaced all six injectors with known good and correct size (lbs./hr) from stock. Car ran and passed smog next day.
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