2001 chevrolet 2500hd 6.0 sputters and dies when hit bumps
Please help !. I have a 2001 chevrolet 2500hd 6.0 gas and
when I hit bumps or drive in a field it acts like its starving
for fuel. Sometimes when I pull into my driveway there is
alittle bump and the truck dies. While it's doing this none of
my gauges or lights shut off so I dont think it's a battery
issue. I hooked it up to a computer it's not throwing any
code what so ever. But we did notice on the computer if
you pressed on the break and gave it gas putting the truck
under a load each cylinder would show a misfire
periodically. Also while in neutral rev it up to 5000 rpm real
quick you would see the misfire there too but each different
time it was a different cylinder. All the parts I have changed
are mass air flow sensor, iac sensor, tps sensor, fuel filter,
checked all fuses. The one year old parts are fuel pump
plugs, sparkplug wires. Any other direction I can go ? My
truck has 315,000 miles on it yea its alot but minus this
spot sputter thing it runs good.
Pic.
Well I replaced the ignition switch it was a 10 pin. The first day was great I thought this fixed it. But then the next day problem started again turning it would shut off hit a bump truck shut off. Stuttering from low speed to flooring it. But once you get on the open road cruzing 70 to 80 mph no problems there.... I fixing to set match to this truck.
