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	 2004 Ford Explorer NBX 4.0L Misfire 
		
		An explorer came in for a check engine light running rough. Installed plugs and wires, but it didn't fix the problem. Looking deeper in IATN found similar cases of misfire where plugs and wires wasn't a fix. Broken valve springs are also common. Got and ok to ... 
                        
                            FIX posted 6/6/2008
                             
                 
                            
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           Message Closed w/FIX 
	   
	   
	   
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| VIN | 1FMZU73K04 | 
| Engine | 4.0 L / 6 cyl / FLEX | 
| Trans | 5-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire | 
| Occurs | Always | 
Trouble Codes
| P0306 | Cylinder 6 Misfire Detected | 
| P0316 | Misfire Detected On Startup (Within the 1st 1000 Revolutions) | 
Message Closed w/FIX
            
            
 Vehicle Data
                2004 Ford Explorer NBX
| VIN | 1FMZU73K04 | 
| Engine | 4.0 L / 6 cyl / FLEX | 
| Trans | 5-speed Automatic (Electronic) | 
| Delivery | FI | 
| Emissions | OBD-II Compliant | 
| Symptoms | Misfire | 
| Occurs | Always | 
Trouble Codes
| P0306 | Cylinder 6 Misfire Detected | 
| P0316 | Misfire Detected On Startup (Within the 1st 1000 Revolutions) | 
                            
6 Replies Received
          6 Replies Received
          
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