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1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
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still having issues

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Old Dec 19, 2011 | 11:03 AM
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biker123
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still having issues

Ok guys and gals,

I started having what seemed like misfireing in my 2000 Ford f250 V10 super duty, so I changed all the plaugs and COP's as well as the fuel filter. While i was changing the plugs I had two that the threads came out of the block on me, so I retapped them as directed by our local ford dealer. The truck runs much better now, however it still idols rough (about 800 RPM) while in drive and when it shifts into the last gear it runs really rough, I can hear what seems to be a miss as it drives away or I listen to the engine, but it is very faint while doing that.

Is there something that i missed when doing this tuneup? It was a great truck before this happened and I dont want to sell it. Any suggestions????? really need some help!!
 
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