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	 2008 Ford F-150 XL 4.6L Poor Idle Quality, Surge, Cuts out, Misfire 
		
		The engine a little rough at first. All ft are at 0 then max out in opposite directions. B1 cat doesn't heat up. It seems quite apparent that the cat is clogged. However, I removed the upstream o2 and unplugged the rest. The fuel trim is still adjusting and ma... 
                        
                            FIX posted 2/28/2017
                             
                 
                            
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           Message Closed w/FIX 
	   
	   
	   
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| VIN | 1FTRX12W48 | 
| Engine | 4.6 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Poor Idle Quality, Surge, Cuts Out, Misfire | 
| Occurs | Always | 
Message Closed w/FIX
            
            
 Vehicle Data
                2008 Ford F-150 XL
| VIN | 1FTRX12W48 | 
| Engine | 4.6 L / 8 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | Fuel Injection | 
| Emissions | OBD-II Compliant | 
| Symptoms | Poor Idle Quality, Surge, Cuts Out, Misfire | 
| Occurs | Always | 
                            
6 Replies Received
          6 Replies Received
          
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