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by ejbalboa on January 18th, 2007

ejbalboa

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1989 gmc suburban 1500 4x4 t.b.i injection engine is 350 rebuilt bored to 60 and runs very smooth but its lacking 30 to 40% of power when I accelerate hard it bogs down could it be lack of fuel pressure?check light is ok. trans is rebuilt also

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  • by tjatherton on January 18th, 2007

    tjatherton

    Check the vacuum advance setting, fuel filter, or that it may have a governor on the system.
    Sounds more like a vacuum line of sorts, do you hear a vacuum leak when accelerating?

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You're reading 1989 gmc suburban 1500 4x4 t.b.i injection engine is 350 rebuilt bored to 60 and runs very smooth but its lacking 30 to 40% of power when I accelerate hard it bogs down could it be lack of fuel pressure?check light is ok. trans is rebuilt also

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