injectors

[truck04]

I have a 2004 gmc 1500 i have had it in the garage 4 times for fuel injectors 2&7 causing miss fire they say that I am getting bad fuel that the injectors are plugging up. So I went to a different compay to get my gas after the 3rd time and i just had to replace the injectors again after 4856 miles for the four time .Is there anyone else having this problem with their 2004 serria 1500? And I a have 66,000 on the truck and they say they have cleaned the fuel rails and cleaned the tank at the 3rd time I had it in the garage .

[99Silver6.0]

I have a 2004 gmc 1500 i have had it in the garage 4 times for fuel injectors 2&7 causing miss fire they say that I am getting bad fuel that the injectors are plugging up. So I went to a different compay to get my gas after the 3rd time and i just had to replace the injectors again after 4856 miles for the four time .Is there anyone else having this problem with their 2004 serria 1500? And I a have 66,000 on the truck and they say they have cleaned the fuel rails and cleaned the tank at the 3rd time I had it in the garage .

 

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Try changing the plugs and wires. There are other things that can cause misfires besides the injectors.