2007 Chevrolet Suburban 2500 Questions

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Everytime I try to refuel my truck the overflow protection device on the fuel pump is activated for some reason. My problem started approximately a year ago with a check engine light with a code concerning my gas cap. I replaced the cap twice but this did not fix the problem. Now the problem is worse. I spend 20 minutes at the pump to pump 5 gallon of fuel. As you know, this beast drinks the fuel so I spend many 20 minute periods at the pump to get 50 miles down the road.

How do I fix this issue? Dealer hasn't a clue, actually niether of the two dealers I have taken the truck to can help me. They want to do exploratory surgury on my dime.

Let me know if you are familiar with this issue.


where is the fuel filter located in my 2007 suburban 2500, 6.0L?
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