Question about 1993 GMC Sierra K1500

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Sluggish slow acceleration

When driving, acceleration is sluggish when accelerator is pressed down to pass and tachometer surges. Feels like something holding it back, no get up and go. It does speed up but not like it should.

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  • Anonymous Mar 30, 2009

    when accelerating after driving like a idiot the truck hesitates on acceleration

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Check that transmission fluid if its an automatic, should be full and clean, if manual trans clutch probably slipping

Posted on Jan 18, 2009

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You can do a quick test by holding the brake down firmly and in gear, press down on the gas. have someone watch (from the side of the car ONLY) and see if the engine shifts. Do in both drive and reverse.
Be very careful when doing this that the car does not get away from you and do not hold power for more than about fifteen seconds at a time or it can overheat the transmission. This only works in automatic trans cars... for stickshift ones you need to move the engine with a long pry bar.

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