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Showing results for tags 'pulsating acceleration'.
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I have a 1997, 2500 6.5L Diesel Suburban with an intermittent fuel problem. The vehicle will start pulsating as if it is losing power then surging back, the amount of drop off and surging is proportional to the speed you are going at. While idling it hardly shows on the tack, but at 65-70 it will be 500-600rpm. It will also jack rabbit from a stop when you give the least amount of pedal. I have replaced the pressure pump, fuel filter, fuel cap, and accelerator pedal. My mechanic and I were told to check for air in the fuel line and didn't see any, did a visual inspection of the fuel line and didn't see anything. My mechanic and I are at our wits end does anyone have an idea of what it could be. In the mean time I'm driving it till it dies then I might be able to find the problem.
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- fuel
- diesel 2500
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