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GMFS slowest truck :read:
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5,501 Posts
like jebx said, could be a leaky manifold...but first thing i thought was maybe distributer...my magent cracked on mine, i thought the tranny was goin out on me for a lil while, then one night on the way home the truck sputtered really bad 3 times and shut off...thankfully i was 1/4 mile away from my neighborhood and was able to coast home (stopped on top of the big hill before my neighborhood and rolled down it and down to the bottom of my neighborhood, like 5 houses away from my house). i would check your magent on your distributer, if its cracked, thats def your prob...i don't really know how a leaky manifold gasket could cause that big of a problem, unless its REALLY bad...but it does sound like something ignition related if u ask me...might as well go ahead and do a basic tune up (new coil, plugs, wires, cap, rotor), and that may help it
 
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