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pulling my hair out

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New User

Jul 19, 2015, 5:21 AM

Post #1 of 2 (755 views)
pulling my hair out Sign In

I have a 98 gmc sierra 1500 4wd sle. I recently changed the fuel pump. I drove it the next day and put 70 miles on it. All of a sudden at a stop sign when I hit the brakes to slow down it started losing power shaking and would not go. When I got to work it stalled out. I had it checked and it said code 0300 then I had it checked it again and the guy said cylinder 4 and 7 were misfifing. So I checked those and they were fine I also cheng ed the fuel pressure regulator and cannot figure out what is going on. Has anyone ever had this happen before.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 19, 2015, 6:09 AM

Post #2 of 2 (747 views)
Re: pulling my hair out Sign In

What is the fuel pressure while this is happening?


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