Truck is running lean and very rough sounds like a boat in the water

Asked by GuruC53ZK Feb 07, 2019 at 08:19 AM about the 2003 Chevrolet Silverado 1500 Extended Cab 4WD

Question type: Maintenance & Repair

I ha e a 2003 Chevy Silverado z71 with the 5.3
vortec. I acedently put jp8 jet fuel in my gas tank
about 5 liters and ran it through the truck have put
two full tanks of gas since then but still having
problems. It says my bank one and two sensors
are running lean and it is skipping a cylinder when
ideling . i think it migh just need new spark plugs
and fuel filter and fuel pump any ideas .

3 Answers

GuruC53ZK answered 5 years ago

Thank you tennissshoes definitely am going to replace spark plugs as fuel filter hopefully won't have to do the o2 sensor due to it having two sending and two reviving o2 sensor

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GuruC53ZK answered 5 years ago

Do you think the o2 sensor will mater if i have been running a straight pipe from before the muffalor and did not have any check engine lights until i put the wrong fuel in it?

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