Engine Mechanical problem
1992 Chevy Cheyenne 6 cyl Two Wheel Drive Automatic 122000 miles
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I have a 92 chevy cheyenne v6 4.3 auto.When i start it up the rpm is up and down.When I try to drive it, it cuts out real bad.I have had the ignition modle and ignition coil checked.I also changed the fuel filter,plugs,and plug wires.I was also told it could be the maps sensor which I changed and it had no effect.Thanks, James