 
				
	| 1999 Ford F-350 Super Duty XL 6.8L Hesitation, Surge, Misfire Hello, I have a po171,po300, and a po401. The dpfe was not showing the proper voltage so I replaced it ,now working and no more 401. This truck pings uphill and runs very badly,(feels like miss) but runs perfect with no load. problem occurs only under med to h... 
                        
                            Summary posted 10/17/2004
                               
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 | Message Closed w/Summary 
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| VIN | 1FTWW33SOX | 
| Engine | 6.8 L / 10 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Hesitation, Surge, Misfire | 
| Occurs | Hot, Under Load | 
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) | 
| P0401 | EGR System Insufficient Flow Detected | 
Message Closed w/Summary
            
             Vehicle Data
 Vehicle Data
                1999 Ford F-350 Super Duty XL
| VIN | 1FTWW33SOX | 
| Engine | 6.8 L / 10 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Hesitation, Surge, Misfire | 
| Occurs | Hot, Under Load | 
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) | 
| P0401 | EGR System Insufficient Flow Detected | 
 16 Replies Received
16 Replies Received
 16 Replies Received
          16 Replies Received
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