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  1. B

    02 Suburban

    How can you tell the piston is all the way up?
  2. B

    Fuel rail pressure

    Yes it is.
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    Fuel rail pressure

    I wanted to but was in a little bit of a hurry and if tuere is a next time, I guess I know what to do lol.
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    Fuel rail pressure

    Yes. Took about 4 hours and one broken tank hanger bolt, it was rusted and locked up, had to grind it off.
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    Fuel rail pressure

    Replaced the fuel pump with delphi model and Bam. She's fixed. The old lines on top of the fuel pump where pretty corroded so I'm guessing there was a leak from that. Thanks for all the help.
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    Fuel rail pressure

    What brand pump did you by? And did you have to replace the plastic hose connections for the new pump?
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    Fuel rail pressure

    Alright. I'm back at it. Still same issue, got a pressure test to it and while idle it has close to 60 psi but when turned off it drops pressure real quick and doesn't hold it. Fuel pump for sure then? Not leaking gas and no gass vapor smells.
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    Fuel rail pressure

    Couple weeks ago we went camping pulling a 28ft travel trailer and another trip in 2 weeks. It does get drove more on weekends. Thanks for the info.
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    Fuel rail pressure

    Haha just did a Google search of Italian tune up.
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    Fuel rail pressure

    Like plugs and wires?
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    Fuel rail pressure

    Ya it's the family vehical and wife doesn't work. I'm going to check fuel pressure and see if it holds or not.
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    Fuel rail pressure

    Sorry. Total miles. Never had a tune up.
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    Fuel rail pressure

    110k miles
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    Fuel rail pressure

    Ya I tried a pressure test but O'Rileys was broken and I do cycle it on to prime the fuel pump, it will start but after 3 seconds of cranking and it spudders to an idle. But once at idle it's good.
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    Fuel rail pressure

    Didnt see any sign of fuel. What would the next step be? EVAP lines?
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    Fuel rail pressure

    Dang that's hard to get at but this is the best I could get but no fuel marks on the side of the tank as if it where leaking. What you think?
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    Fuel rail pressure

    If this was the case, would it throw a code for low fuel pressure or something?
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    Fuel rail pressure

    I will check that tomorrow, it's been rainy. But what would this point to if there is gas there?
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    Fuel rail pressure

    I have ran 20 gallons of treated fuel thru it and plan on doing more but if it was one of those electric valves or sensors, wouldn't it throw a code? I have no dash lights. Thanks for a fast reply.
  20. B

    Fuel rail pressure

    Mid grade 89
  21. B

    Fuel rail pressure

    Starting my 07 Yukon XL Denali after it sits for a while doesn't start right away. It cranks over but doesn't start. Try starting again and fires right up. No codes on the das and it idles and drives fine. What's the problem?

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