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Recent content by browns

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    2003 gmc 6.6L surging idle when cold

    Yes the three rubber lines under the hood two on the filter housing are easy the third goes across the top of the front of the intake manifold it takes a little work to change this one. Don't buy the ones from Chevy they are way over priced all you need is 1/2" diesel fuel line to replace them...
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    2003 gmc 6.6L surging idle when cold

    Got it on the Duramax the 3 rubber fuel lines in the engine bay area get porris. Causing the engine to surge. Replaced all three with 1/2 diesel fuel line and problem was solved. We had run into this before but slept since then and forgot. thanks for your help.
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    2003 gmc 6.6L surging idle when cold

    I have a 2003 GMC 2500 6.6L it surges slightly when cold after it warms up surge goes away. It is not the FPR and it is not air in the system. I had the ECM flashed and new stock injectors installed.
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