It's the fuel pump, there's 28psi in the lines and it's supposed to be 60-65psi. Getting a new one installed tomorrow mourning and that's setting me back $695 so hopefully that's all it is.
Got another question for you, if it's the filter how come it's only when you start it up? It did fine for over two hours after we got it out on the highway running 75-80 then did fine at stop lights in town and all?
It's a 02 Yukon xl, 5.3. Filled up and got on the highway and it was fine until I went to pass someone and it started bogging down. When idling it would idle rough and if you gave it gas it would bog but you could slowly bring the rpms up. After a min of revving it it would do fine and drove...
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